0001628280-15-001638 | 10-K | XBRL Viewer

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Document and Entity Information - USD ($)	12 Months Ended
Document and Entity Information - USD ($)	Dec. 31, 2014	Mar. 03, 2015	Jun. 30, 2014
Document And Entity Information [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2014
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY
Trading Symbol	NVTL
Entity Registrant Name	NOVATEL WIRELESS INC
Entity Central Index Key	0001022652
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		45,939,859
Entity Public Float			$ 63,195,226

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 17,853	$ 2,911
Marketable securities	0	16,612
Restricted marketable securities	0	2,566
Accounts receivable, net of allowance for doubtful accounts of $217 in 2014 and $2,449 in 2013	24,213	39,985
Inventories	37,803	27,793
Prepaid expenses and other	7,912	5,762
Total current assets	87,781	95,629
Property and equipment	5,279	9,901
Marketable securities	0	3,443
Intangible assets, net of accumulated amortization of $14,050 in 2014 and $12,983 in 2013	1,493	2,131
Other assets	467	361
Total assets	95,020	111,465
Current liabilities:
Accounts payable	34,540	24,538
Accrued expenses	23,844	23,271
Current portion of shareholder litigation	0	4,326
Short-term margin loan facility	0	2,566
Total current liabilities	58,384	54,701
Revolving credit facility	5,158	0
Other long-term liabilities	932	1,848
Non-current portion of shareholder litigation	0	10,000
Total liabilities	64,474	66,549
Commitments and Contingencies
Stockholders’ equity:
Preferred stock, par value $0.001; 2,000 shares authorized and none outstanding	0	0
Common stock, par value $0.001; 100,000 shares authorized, 45,742 and 34,097 shares issued and outstanding at December 31, 2014 and 2013, respectively	46	34
Additional paid-in capital	466,665	441,368
Accumulated other comprehensive income	0	5
Accumulated deficit	(411,165)	(371,491)
Stockholders' equity before treasury stock	55,546	69,916
Treasury stock at cost; 2,436 common shares at December 31, 2014 and 2013	(25,000)	(25,000)
Total stockholders’ equity	30,546	44,916
Total liabilities and stockholders’ equity	$ 95,020	$ 111,465

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2014	Dec. 31, 2013
Statement of Financial Position [Abstract]
Accounts receivable, net of allowance for doubtful accounts	$ 217	$ 2,449
Intangible assets, net of accumulated amortization	$ 14,050	$ 12,983
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	2,000,000	2,000,000
Preferred stock, shares outstanding	0	0
Common stock shares issued at par value	$ 0.001	$ 0.001
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	45,742,000	34,097,000
Common stock, shares outstanding	45,742,000	34,097,000
Treasury stock, shares	2,436,000	2,436,000

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Statement [Abstract]
Net revenues	$ 185,245	$ 335,053	$ 344,288
Cost of net revenues	148,198	266,759	271,845
Gross profit	37,047	68,294	72,443
Operating costs and expenses:
Research and development	34,314	48,246	60,422
Sales and marketing	13,792	20,898	27,501
General and administrative	15,402	24,179	22,668
Goodwill and intangible assets impairment	0	0	49,521
Amortization of purchased intangible assets	562	562	1,074
Shareholder litigation loss	790	14,326	0
Restructuring charges	7,760	3,304	0
Total operating costs and expenses	72,620	111,515	161,186
Operating loss	(35,573)	(43,221)	(88,743)
Other income (expense):
Change in fair value of warrant liability	(3,280)	0	0
Interest income (expense), net	(85)	113	291
Other expense, net	(167)	(222)	(203)
Loss before income taxes	(39,105)	(43,330)	(88,655)
Income tax provision	124	83	611
Net loss	(39,229)	(43,413)	(89,266)
Recognition of beneficial conversion feature	(445)	0	0
Net loss	$ (39,674)	$ (43,413)	$ (89,266)
Net loss per share:
Basic and diluted net loss per share (dollars per share)	$ (1.05)	$ (1.28)	$ (2.72)
Weighted average shares used in computation of basic and diluted net loss per share attributable to common shareholders:
Weighted-average common shares outstanding (in shares)	37,959	33,948	32,852

Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Statement of Comprehensive Income [Abstract]
Net loss	$ (39,674)	$ (43,413)	$ (89,266)
Unrealized gain (loss) on cash equivalents and marketable securities, net of tax	(5)	(9)	22
Total comprehensive loss	$ (39,679)	$ (43,422)	$ (89,244)

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Reference 7: http://www.xbrl.org/2003/role/presentationRef
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Reference 10: http://www.xbrl.org/2003/role/presentationRef
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+ Details

Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Treasury Stock	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)
Beginning Balance at Dec. 31, 2011	$ 166,025	$ 32	$ 429,813	$ (25,000)	$ (238,812)	$ (8)
Beginning Balance, shares at Dec. 31, 2011		32,262
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options, vesting of restricted stock units and shares issued under employee stock purchase plan, shares		1,393
Exercise of stock options, vesting of restricted stock units and shares issued under employee stock purchase plan	1,599	$ 2	1,597
Taxes withheld on net settled vesting of restricted stock units	(433)		(433)
Share-based compensation	7,500		7,500
Net loss	(89,266)				(89,266)
Other comprehensive income (loss)	22					22
Ending Balance at Dec. 31, 2012	85,447	$ 34	438,477	(25,000)	(328,078)	14
Ending Balance, shares at Dec. 31, 2012		33,655
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options, vesting of restricted stock units and shares issued under employee stock purchase plan, shares		442
Exercise of stock options, vesting of restricted stock units and shares issued under employee stock purchase plan	102	$ 0	102
Taxes withheld on net settled vesting of restricted stock units	(654)		(654)
Share-based compensation	3,443		3,443
Net loss	(43,413)				(43,413)
Other comprehensive income (loss)	(9)					(9)
Ending Balance at Dec. 31, 2013	44,916	$ 34	441,368	(25,000)	(371,491)	5
Ending Balance, shares at Dec. 31, 2013		34,097
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options, vesting of restricted stock units and shares issued under employee stock purchase plan, shares		689
Exercise of stock options, vesting of restricted stock units and shares issued under employee stock purchase plan	248	$ 2	246
Issuance of common shares in litigation settlement (in shares)		2,407
Issuance of common shares in connection with litigation settlement	5,000	$ 2	4,998
Issuance of common shares in HC2 financing transaction (in shares)		7,363
Issuance of common shares in connection with financing transaction, net of issuance costs	7,936	$ 7	7,929
Taxes withheld on net settled vesting of restricted stock units	(1,067)		(1,067)
Issuance of common shares for conversion of Series C Preferred Shares (in shares)		872
Issuance of common shares in connection with the conversion of Series C preferred shares	940	$ 1	939
Beneficial conversion feature of convertible Series C preferred shares	445		445
Reclassification of warrant liability	8,219		8,219
Share-based compensation (in shares)		314
Share-based compensation	3,588		3,588
Net loss	(39,674)				(39,674)
Other comprehensive income (loss)	(5)					(5)
Ending Balance at Dec. 31, 2014	$ 30,546	$ 46	$ 466,665	$ (25,000)	$ (411,165)	$ 0
Ending Balance, shares at Dec. 31, 2014		45,742

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Cash flows from operating activities:
Net loss	$ (39,674)	$ (43,413)	$ (89,266)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	7,408	8,949	12,337
Loss on goodwill and purchased intangible assets impairment	0	0	49,521
Impairment loss on equipment, leasehold improvements and software license intangible assets	0	418	100
Provision for bad debts, net of recoveries	86	1,936	439
Net impairment loss on marketable securities	0	0	39
Provision for excess and obsolete inventory	3,382	4,344	2,843
Share-based compensation expense	3,588	3,443	7,500
Change in fair value of warrant liability and fair value of beneficial conversion feature on convertible Series C preferred shares	3,725	0	0
Shareholder litigation loss	0	14,326	0
Non-cash income tax expense	87	220	462
Changes in assets and liabilities:
Accounts receivable	15,688	730	(6,242)
Inventories	(13,392)	6,879	420
Prepaid expenses and other assets	(2,403)	(489)	(1,237)
Accounts payable	10,036	(19,237)	(10,433)
Accrued expenses, income taxes, and other	(4,798)	(4,733)	3,638
Net cash used in operating activities	(16,267)	(26,627)	(29,879)
Cash flows from investing activities:
Purchases of property and equipment	(1,753)	(5,011)	(4,579)
Purchases of intangible assets	(431)	0	(104)
Purchases of marketable securities	(1,359)	(24,262)	(44,216)
Marketable securities maturities / sales	23,975	40,897	46,696
Net cash provided by (used in) investing activities	20,432	11,624	(2,203)
Cash flows from financing activities:
Proceeds from the issuances of Series C preferred and common stock, net of issuance costs	14,163	0	0
Proceeds from the issuance of short-term debt, net of issuance costs	0	20,300	14,000
Principal repayments of short-term debt	(2,566)	(17,734)	(14,000)
Repayment of litigation settlement note payable, including interest	(5,026)	0	0
Borrowings on revolving credit facility	5,158	0	0
Principal payments under capital lease obligations	0	0	(46)
Taxes paid on vested restricted stock units net of proceeds from stock option exercises and ESPP	(821)	(552)	1,166
Net cash provided by financing activities	10,908	2,014	1,120
Effect of exchange rates on cash and cash equivalents	(131)	(144)	(63)
Net increase (decrease) in cash and cash equivalents	14,942	(13,133)	(31,025)
Cash and cash equivalents, beginning of period	2,911	16,044	47,069
Cash and cash equivalents, end of period	17,853	2,911	16,044
Cash paid during the year for:
Interest	119	65	17
Income taxes	108	121	104
Supplemental disclosures of non-cash activities:
Building rent incentives to fund leasehold improvements	0	359	0
Issuance of common stock for litigation settlement	5,000	0	0
Initial fair value of warrant liability recorded upon issuance of Series C preferred and common stock	4,939	0	0
Issuance of common stock for conversion of Series C preferred shares	$ 940	$ 0	$ 0

Nature of Business and Significant Accounting Policies	12 Months Ended
Nature of Business and Significant Accounting Policies	Dec. 31, 2014
Accounting Policies [Abstract]
Nature of Business and Significant Accounting Policies	Nature of Business and Significant Accounting Policies Novatel Wireless, Inc. (the “Company,” “our” or “we”) is a provider of wireless broadband access solutions for the worldwide mobile communications market. Our broad range of products principally includes intelligent mobile hotspots, USB modems, embedded modules, integrated asset-management and mobile tracking machine-to-machine (“M2M”) devices, communications and applications software and cloud services. Basis of Presentation We have recently incurred operating losses and had a net loss attributable to common shareholders of $39.7 million during the year ended December 31, 2014. As of December 31, 2014, we had available cash and cash equivalents totaling $17.9 million, and working capital of $29.4 million. Our ability to transition to attaining profitable operations is dependent upon achieving a level of revenues adequate to support our cost structure. If events or circumstances occur such that we do not meet our operating plan as expected, we may be required to reduce planned research and development activities, incur additional restructuring charges or reduce other operating expenses which could have an adverse impact on our ability to achieve our intended business objectives. These additional reductions in expenditures , if required, could have an adverse impact on our ability to achieve certain of our business objectives during 2015. We believe our working capital resources are sufficient to fund our operations through at least December 31, 2015. Principles of Consolidation The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All intercompany transactions and balances have been eliminated in consolidation. Use of Estimates The preparation of financial statements in conformity with accounting principles generally accepted in the U.S. requires management to make estimates and assumptions. These estimates and assumptions affect the reported amounts of assets, liabilities, revenues and expenses, and disclosure of contingent liabilities. Actual results could differ materially from these estimates. Significant estimates include allowance for doubtful accounts receivable, provision for excess and obsolete inventory, valuation of intangible and long-lived assets, fair value of warrant liability, accruals relating to litigation, restructuring, and retention bonus, provision for warranty costs, income taxes and share-based compensation expense. Cash and Cash Equivalents Cash and cash equivalents include highly liquid investments with original maturities of three months or less. Cash and cash equivalents consist of demand deposits, US Treasury securities, and money market funds. Cash and cash equivalents are recorded at market value, which approximates cost. Gains and losses associated with the Company’s foreign currency denominated demand deposits are recorded as a component of other income (expense). Allowance for Doubtful Accounts Receivable The Company provides an allowance for its accounts receivable for estimated losses that may result from its customers’ inability to pay. The Company determines the amount of the allowance by analyzing known uncollectible accounts, aged receivables, economic conditions, historical losses, and changes in customer payment cycles and our customers’ credit-worthiness. Amounts later determined and specifically identified to be uncollectible are charged or written off against this allowance. To minimize the likelihood of uncollectibility, the Company reviews its customers’ credit-worthiness periodically based on credit scores generated by independent credit reporting services, its experience with its customers and the economic condition of its customers’ industries. Material differences may result in the amount and timing of expense for any period if the Company were to make different judgments or utilize different estimates. Marketable Securities Marketable securities predominantly consist of highly liquid debt investments with a maturity of greater than three months when purchased. The Company did not have any short or long-term marketable securities at December 31, 2014. All of the Company’s marketable debt securities are treated as “available-for-sale.” While it is the Company’s intent to hold its debt securities until maturity, the Company may sell certain securities for cash flow purposes. Thus, the Company’s marketable debt securities are classified as available-for-sale and are carried on the balance sheet at fair value with the related unrealized gains and losses included in accumulated other comprehensive loss, a component of stockholders’ equity. Realized gains and losses on the sale of marketable securities are determined using the specific-identification method. The Company determines the fair value of its financial assets and liabilities by reference to the hierarchy of inputs which consists of three levels: Level 1 fair values are valuations based on quoted market prices in active markets for identical assets or liabilities that the entity has the ability to access; Level 2 fair values are those valuations based on quoted prices for similar assets or liabilities, quoted prices in markets that are not active, or other inputs that are observable or can be corroborated by observable data for substantially the full term of the assets or liabilities; and Level 3 fair values are valuations based on inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. All securities whose maturity or sale is expected within one year are classified as “current” on the consolidated balance sheet. All other securities are classified as “long-term” on the consolidated balance sheet. Inventories and Provision for Excess and Obsolete Inventory Inventories are stated at the lower of cost (first-in, first-out method) or market. Shipping and handling costs are classified as a component of cost of net revenues in the consolidated statements of operations. The Company reviews the components of its inventory and its inventory purchase commitments on a regular basis for excess and obsolete inventory based on estimated future usage and sales. Write-downs in inventory value or losses on inventory purchase commitments depend on various items, including factors related to customer demand, economic and competitive conditions, technological advances or new product introductions by the Company or its customers that vary from its current expectations. Whenever inventory is written down, a new cost basis is established and the inventory is not subsequently written up if market conditions improve. The Company believes that, when made, the estimates used in calculating the inventory provision are reasonable and properly reflect the risk of excess and obsolete inventory. If customer demand for the Company’s inventory is substantially less than its estimates, inventory write-downs may be required, which could have a material adverse effect on its consolidated financial statements. Property and Equipment Property and equipment are initially stated at cost and depreciated using the straight-line method. Test equipment, computer equipment, purchased software, furniture, and fixtures and product tooling are depreciated over lives ranging from eighteen months to five years and leasehold improvements are depreciated over the shorter of the related remaining lease period or useful life. Amortization of assets held under capital leases is included in depreciation expense. Expenditures for repairs and maintenance are expensed as incurred. Expenditures for major renewals and betterments that extend the useful lives of existing property and equipment are capitalized and depreciated. Upon retirement or disposition of property and equipment, any resulting gain or loss is recognized in the consolidated statements of operations. Intangible Assets Intangible assets include purchased intangible assets acquired from Enfora, Inc. (“Enfora”) on November 30, 2010 and the costs of non-exclusive and perpetual worldwide software technology licenses. These costs are amortized on an accelerated basis or on a straight-line basis over the estimated useful lives of the assets, depending on the anticipated utilization of the asset. The majority of intangible assets relate to the developed technologies and trade name resulting from the acquisition of Enfora. Developed technologies are amortized on a straight-line basis over the remaining one year useful life. Trade name is amortized on a straight-line basis over the remaining useful life of three years. Long-Lived Assets The Company periodically evaluates the carrying value of the unamortized balances of its long-lived assets, including property and equipment and intangible assets, to determine whether impairment of these assets has occurred or whether a revision to the related amortization periods should be made. When the carrying value of an asset exceeds the associated undiscounted expected future cash flows, it is considered to be impaired and is written down to fair value. Fair value is determined based on an evaluation of the assets associated undiscounted future cash flows or appraised value. This evaluation is based on management’s projections of the undiscounted future cash flows associated with each class of asset. If management’s evaluation indicates that the carrying values of these assets are impaired, such impairment is recognized by a reduction of the applicable asset carrying value to its estimated fair value and the impairment is expensed as a part of continuing operations. Goodwill Goodwill represents the excess of the purchase price of an acquired enterprise over the fair value assigned to assets acquired and liabilities assumed in a business combination. Goodwill is allocated as of the date of the business combination to the reporting units that are expected to benefit from the synergies of the business combination. Goodwill is considered to be impaired if the Company determines that the carrying value of the reporting unit to which the goodwill has been assigned exceeds its estimated fair value. As of December 31, 2014, all historical goodwill had been fully impaired. Revenue Recognition The Company’s revenue is principally generated from the sale of wireless modems to wireless operators, OEM customers and value added resellers and distributors. In addition, the Company generates revenue from the sale of asset-management solutions utilizing wireless technology and M2M communication devices predominantly to transportation and industrial companies, medical device manufacturers and security system providers. Revenue from product sales is generally recognized upon the later of transfer of title or delivery of the product to the customer. Where the transfer of title or risk of loss is contingent on the customer’s acceptance of the product, we will not recognize revenue until both title and risk of loss have transferred to the customer. We record deferred revenue for cash payments received from customers in advance of when revenue recognition criteria are met. We have granted price protection to certain customers in accordance with the provisions of the respective contracts and track pricing and other terms offered to customers buying similar products to assess compliance with these provisions. We estimate the amount of price protection for current period product sales utilizing historical experience and information regarding customer inventory levels. To date, we have not incurred material price protection obligations. Revenues from sales to certain customers are subject to cooperative advertising allowances. Cooperative advertising allowances are recorded as an operating expense to the extent that the advertising benefit is separable from the revenue transaction and the fair value of that advertising benefit is determinable. To the extent that such allowances either do not provide a separable benefit to us, or the fair value of the advertising benefit cannot be reliably estimated, such amounts are recorded as a reduction of revenue. We establish reserves for estimated product returns allowances in the period in which revenue is recognized. In estimating future product returns, we consider various factors, including our stated return policies and practices and historical trends. Predominantly all of our revenues represent the sale of hardware with accompanied software that is essential to the functionality of the hardware. The Company records revenue associated with the agreed upon price on hardware sales, and accrues any estimated costs of post-delivery performance obligations such as warranty obligations. The Company considers the four basic revenue recognition criteria discussed under Staff Accounting Bulletin No. 104 when assessing appropriate revenue recognition as follows: Criterion #1—Persuasive evidence of an arrangement must exist; Criterion #2—Delivery has occurred; Criterion #3—The Company’s price to the buyer must be fixed or determinable; and, Criterion #4—Collectability is reasonably assured. For multiple element arrangements, total consideration received from customers is allocated to the elements. This may include hardware, non-essential software elements and/or essential software, based on a relative selling price. The accounting guidance establishes a hierarchy to determine the selling price to be used for allocating revenue to deliverables as follows: (i) vendors specific objective evidence (VSOE), (ii) third party evidence (TPE), and (iii) best estimate of selling price (BESP). Because the Company has neither VSOE nor TPE, revenue has been based on the Company’s BESP. Amounts allocated to the delivered hardware and the related essential software are recognized at the time of the sale provided all other revenue recognition criteria have been met. Amounts allocated to other deliverables based upon BESP are recognized in the period the revenue recognition criteria have been met. Our process for determining its BESP for deliverables without VSOE or TPE considers multiple factors that may vary depending upon the unique facts and circumstances related to each deliverable. Our prices are determined based upon cost to produce our products, expected order quantities, acceptance in the marketplace and internal pricing parameters. In addition, when developing BESPs for products we may consider other factors as appropriate including the pricing of competitive alternatives if they exist, and product-specific business objectives. We account for nonessential software licenses and related post contract support (PCS) under multiple element arrangements by recognizing revenue for such arrangements ratably over the term of the PCS as we have not established VSOE for the PCS element. For the years ended December 31, 2014, 2013 and 2012, we have not recorded any significant revenues from multiple element or software arrangements. Research and Development Costs Research and development costs are expensed as incurred. Warranty Costs The Company accrues warranty costs based on estimates of future warranty related replacement, repairs or rework of products. Our warranty policy generally provides one to three years of coverage for products following the date of purchase. The Company’s policy is to accrue the estimated cost of warranty coverage as a component of cost of revenue in the accompanying consolidated statements of operations at the time revenue is recognized. In estimating our future warranty obligations the Company considers various factors, including the historical frequency and volume of claims and the cost to replace or repair products under warranty. The warranty provision for our products is determined by using a financial model to estimate future warranty costs. The Company’s financial model takes into consideration actual product failure rates; estimated replacement, repair or rework expenses; and potential risks associated with our different products. The risk levels, warranty cost information and failure rates used within this model are reviewed throughout the year and updated, if and when, these inputs change. Income Taxes The Company recognizes federal, state and foreign current tax liabilities or assets based on our estimate of taxes payable to or refundable by tax authorities in the current fiscal year. The Company also recognizes federal, state and foreign deferred tax liabilities or assets based on the Company’s estimate of future tax effects attributable to temporary differences and carryforwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. Deferred tax assets are reduced by valuation allowances if, based on the consideration of all available evidence, it is more likely than not that some portion of the deferred tax asset will not be realized. The Company evaluates deferred income taxes on a quarterly basis to determine if valuation allowances are required by considering available evidence. If the Company is unable to generate sufficient future taxable income in certain tax jurisdictions, or if there is a material change in the actual effective tax rates or time period within which the underlying temporary differences become taxable or deductible, the Company could be required to increase its valuation allowance against its deferred tax assets which could result in an increase in the Company’s effective tax rate and an adverse impact on operating results. The Company will continue to evaluate the necessity of the valuation allowance based on the remaining deferred tax assets. The Company follows the accounting guidance related to financial statement recognition, measurement and disclosure of uncertain tax positions. The Company recognizes the impact of an uncertain income tax position on an income tax return at the largest amount that is more-likely-than-not to be sustained upon audit by the relevant taxing authority. An uncertain income tax position will not be recognized if it has less than a 50% likelihood of being sustained. Uncertain tax positions are recognized in the first subsequent financial reporting period in which that threshold is met or from changes in circumstances such as the expiration of applicable statutes of limitations. Litigation The Company is currently involved in certain legal proceedings. The Company will record a loss when the Company determines information available prior to the issuance of the financial statements indicates the loss is both probable and estimable. Where a liability is probable and there is a range of estimated loss with no best estimate in the range, the Company records the minimum estimated liability related to the claim. As additional information becomes available, the Company assesses the potential liability related to the Company’s pending litigation and revises its estimates, if necessary. The Company’s policy is to expense litigation costs as incurred. Share-Based Compensation The Company has granted stock options to employees and restricted stock units. The Company also has an employee stock purchase plan (“ESPP”) for eligible employees. The Company measures the compensation cost associated with all share-based payments based on grant date fair values. The fair value of each employee stock option and employee stock purchase right is estimated on the date of grant using an option pricing model that meets certain requirements. The Company currently uses the Black-Scholes option pricing model to estimate the fair value of its stock options and stock purchase rights. The Black-Scholes model is considered an acceptable model but the fair values generated by it may not be indicative of the actual fair values of our equity awards as it does not consider certain factors important to those awards to employees, such as continued employment and periodic vesting requirements as well as limited transferability. The determination of the fair value of share-based payment awards utilizing the Black-Scholes model is affected by our stock price and a number of assumptions, including expected volatility, expected term, risk-free interest rate and expected dividends. For grants of stock options, the Company uses a blend of historical and implied volatility for traded options on its stock in order to estimate the expected volatility assumption required in the Black-Scholes model. The Company’s use of a blended volatility estimate in computing the expected volatility assumption for stock options is based on its belief that while that implied volatility is representative of expected future volatility, the historical volatility over the expected term of the award is also an indicator of expected future volatility. Due to the short duration of employee stock purchase rights under our ESPP, the Company utilizes historical volatility in order to estimate the expected volatility assumption of the Black-Scholes model. The expected term of stock options granted is estimated using historical experience. The risk-free interest rate assumption is based on observed interest rates appropriate for the expected terms of our stock options and employee stock purchase rights. The dividend yield assumption is based on the Company’s history and expectation of no dividend payouts. The Company estimates forfeitures at the time of grant and revises these estimates, if necessary, in subsequent periods if actual forfeitures differ from those estimates. The Company estimates its forfeiture rate assumption for all types of share based compensation awards based historical forfeiture rates related to each category of award. Compensation cost associated with grants of restricted stock units are measured at fair value, which has historically been the closing price of the Company’s stock on the date of grant. The Company recognizes share-based compensation expense using the straight-line method for awards that contain only service conditions. For awards that contain performance conditions, the Company recognizes the share-based compensation expense on a straight-line basis for each vesting tranche. The Company evaluates the assumptions used to value stock awards on a quarterly basis. If factors change and the Company employs different assumptions, share-based compensation expense may differ significantly from what it has recorded in the past. If there are any modifications or cancellations of the underlying unvested securities, the Company may be required to accelerate, increase or cancel any remaining unearned share-based compensation expense. Computation of Net Loss Per Share Attributable to Common Shareholders The Company computes basic and diluted per share data for all periods for which a statement of operations is presented. Basic net loss per share excludes dilution and is computed by dividing the net loss by the weighted-average number of shares that were outstanding during the period. Diluted EPS reflects the potential dilution that could occur if securities or other contracts to acquire common stock were exercised or converted into common stock. Potential dilutive securities are excluded from the diluted EPS computation in loss periods as their effect would be anti-dilutive. For all periods presented, there is no difference in the number of shares used to calculate basic and diluted shares outstanding due to the Company’s net loss position. Fair Value of Financial Instruments The Company’s fair value measurements relate to its cash equivalents, marketable debt securities, and marketable equity securities, which are classified pursuant to authoritative guidance for fair value measurements. The Company places its cash equivalents and marketable debt securities in instruments that meet credit quality standards, as specified in its investment policy guidelines. These guidelines also limit the amount of credit exposure to any one issue, issuer or type of instrument. Our financial instruments consist principally of cash and cash equivalents, short-term and long-term marketable securities, warrants and short-term and long-term debt. The Company’s cash and cash equivalents consist of our investments in money market securities, time deposits with maturities of less than three months and treasury bills. The Company’s marketable securities consist primarily of government agency securities, municipal bonds, time deposits and investment-grade corporate bonds. From time to time, the Company may utilize foreign exchange forward contracts. These contracts are valued using pricing models that take into account the currency rates as of the balance sheet date. Comprehensive Loss Comprehensive loss consists of net earnings and unrealized gains and losses on available-for-sale securities. Recent Accounting Pronouncements From time to time, new accounting pronouncements are issued by the Financial Accounting Standards Board (the “FASB”), which are adopted by the Company as of the specified date. Unless otherwise discussed, management believes the impact of recently issued standards, which are not yet effective, will not have a material impact on its consolidated financial statements upon adoption. In August 2014, the FASB issued Accounting Standards Update ("ASU") No. 2014-15, Presentation of Financial Statements-Going Concern (Subtopic 205-40): Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern. Under the new guidance, management will be required to assess an entity’s ability to continue as a going concern, and to provide related footnote disclosures in certain circumstances. The provisions of this ASU are effective for annual periods beginning after December 15, 2016, and for annual and interim periods thereafter. The Company is currently evaluating the potential changes from this ASU to its future financial reporting and disclosures. In June 2014, the FASB issued ASU No. 2014-12, Compensation—Stock Compensation: Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved after the Requisite Service Period. The standard requires that a performance target that affects vesting and that could be achieved after the requisite service period be treated as a performance condition. Entities are required to apply the standard for annual periods and interim periods within those annual periods, beginning after December 15, 2015. Early application is permitted. The Company is currently assessing the impact of this new guidance. In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers, which requires a reporting entity to recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The guidance in this ASU affects any entity that either enters into contracts with customers to transfer goods or services or enters into contracts for the transfer of nonfinancial assets unless those contracts are within the scope of other standards. This standard will be effective for annual reporting periods beginning after December 15, 2016. The Company is currently assessing the impact of this new guidance.

Fair Value Measurement of Assets and Liabilities

12 Months Ended

Dec. 31, 2014

Fair Value Disclosures [Abstract]

Fair Value Measurement of Assets and Liabilities

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (exit price). A fair value measurement reflects the assumptions market participants would use in pricing an asset or liability based on the best available information. These assumptions include the risk inherent in a particular valuation technique (such as a pricing model) and the risks inherent in the inputs to the model.

We classify our inputs to measure fair value using a three-level hierarchy that maximizes the use of observable inputs and minimizes the use of unobservable inputs by requiring that the most observable inputs be used when available. The categorization of financial instruments within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement. The hierarchy is prioritized into three levels (with Level 3 being the lowest) defined as follows:

Level 1: Pricing inputs are based on quoted market prices for identical assets or liabilities in active markets (e.g., NYSE). Active markets are those in which transactions for the asset or liability occur in sufficient frequency and volume to provide pricing information on an ongoing basis.

Level 2: Pricing inputs include benchmark yields, trade data, reported trades and broker dealer quotes, two-sided markets and industry and economic events, yield to maturity, Municipal Securities Rule Making Board reported trades and vendor trading platform data. Level 2 includes those financial instruments that are valued using various pricing services and broker pricing information including Electronic Communication Networks and broker feeds.

Level 3: Pricing inputs include significant inputs that are generally less observable from objective sources, including the Company’s own assumptions.

At December 31, 2014, the Company did not have any securities in the Level 3 category. The Company reviews the fair value hierarchy classification on a quarterly basis. We validate the quoted market prices provided by our primary pricing service by comparing their assessment of the fair values of our investments by using a third party investment manager. The third party investment manager uses similar techniques to our primary pricing service to derive the pricing describe above. Changes in the observability of valuation inputs may result in a reclassification of levels for certain securities within the fair value hierarchy.

The following table summarizes the Company’s financial instruments measured at fair value on a recurring basis in accordance with the authoritative guidance for fair value measurements as of December 31, 2014 (in thousands):



Description	Balance as of December 31, 2014		Level 1		Level 2
Assets:
Cash equivalents
Money market funds	$	1,134	$	1,134	$	—
Certificates of deposit	980		—		980
Total cash equivalents	$	2,114	$	1,134	$	980



Description	Balance as of December 31, 2013		Level 1		Level 2
Assets:
Cash equivalents
US Treasury securities	$	487	$	—	$	487
Total cash equivalents	487		—		487
Short-term marketable securities:
Available-for-sale:
Government agency securities	2,351		—		2,351
Municipal bonds	2,829		—		2,829
Certificates of deposit	3,360		—		3,360
Corporate debentures / bonds	10,638		—		10,638
Total short-term marketable securities	19,178		—		19,178
Long-term marketable securities:
Available-for-sale:
Certificates of deposit	1,300		—		1,300
Corporate debentures / bonds	2,143		—		2,143
Total long-term marketable securities	3,443		—		3,443
Total financial assets	$	23,108	$	—	$	23,108

As of December 31, 2014, the Company had no short- or long-term marketable securities.

As of December 31, 2014 and 2013, the Company had no outstanding foreign currency exchange forward contracts.

During the years ended December 31, 2014, 2013 and 2012, the Company recorded foreign currency losses on foreign currency denominated transactions of approximately $176,000, $183,000 and $51,000, respectively. The loss during the years ended December 31, 2014 and 2013 primarily related to foreign currency losses on foreign currency denominated bank accounts. The loss during the year ended December 31, 2012 primarily related to foreign currency losses on South Korean won denominated trade payables.

All recorded gains and losses on foreign exchange transactions are recorded in other income (expense), net, within the consolidated statements of operations.

Other Financial Instruments

Carrying values and fair values of financial instruments that are not carried at fair value in the consolidated balance sheets are as follows (in thousands):



	As of December 31, 2014
Description	Carrying Amount		Fair Value
Revolving credit facility	$	5,158	$	5,158
Total other financial instruments	$	5,158	$	5,158

Financial Statement Details

12 Months Ended

Dec. 31, 2014

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Financial Statement Details

Marketable Securities

The Company did not have any short-term or long-term marketable securities at December 31, 2014.

The following table summarizes the Company’s portfolio of available-for-sale securities by contractual maturity as of December 31, 2013 (in thousands):



December 31, 2013	Maturity in Years	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
Available-for-sale:
Government agency securities	1 or less	$	2,350	$	1	$	—	$	2,351
Municipal bonds	1 or less	2,828		1		—		2,829
Certificates of deposit	1 or less	3,360		—		—		3,360
Corporate debentures / bonds	1 or less	10,635		3		—		10,638
Total short-term marketable securities		19,173		5		—		19,178
Available-for-sale:
Certificates of deposit	1 to 2	1,300		—		—		1,300
Corporate debentures / bonds	1 to 2	2,143		—		—		2,143
Total long-term marketable securities		3,443		—		—		3,443
		$	22,616	$	5	$	—	$	22,621

The Company’s available-for-sale securities are carried on the consolidated balance sheet at fair market value with the related unrealized gains and losses included in accumulated other comprehensive loss on the consolidated balance sheet, which is a separate component of stockholders’ equity. Realized gains and losses on the sale of available-for-sale marketable securities are determined using the specific-identification method.

At December 31, 2014 and 2013, the Company recorded net unrealized gains of $0 and $5,000, respectively. The Company’s net unrealized loss is the result of market conditions affecting its fixed-income debt securities, which are included in accumulated other comprehensive income on the consolidated balance sheet for the periods then ended.

Inventories

Inventories consist of the following (in thousands):



	December 31,
	2014		2013
Finished goods	$	33,045	$	20,870
Raw materials and components	4,758		6,923
	$	37,803	$	27,793

Property and Equipment

Property and equipment consists of the following (in thousands):



	December 31,
	2014			2013
Test equipment	$	53,019		$	52,108
Computer equipment and purchased software	11,247			10,814
Product tooling	3,535			3,204
Furniture and fixtures	1,824			2,015
Leasehold improvements	4,103			4,094
	73,728			72,235
Less—accumulated depreciation and amortization	(68,449		)	(62,334		)
	$	5,279		$	9,901

For the years ended December 31, 2014, 2013 and 2012, the Company recorded $0, $70,000 and $100,000, respectively, in its cost of net revenues as a result of its impairment analysis of property and equipment.

Depreciation expense relating to property and equipment was $6.3 million, $7.9 million and $9.4 million for the years ended December 31, 2014, 2013 and 2012, respectively.

Accrued Expenses

Accrued expenses consist of the following (in thousands):



	December 31,
	2014		2013
Royalties	$	4,035	$	4,243
Payroll and related expenses	8,038		4,828
Product warranty	1,196		2,244
Market development funds and price protection	2,502		3,059
Professional fees	780		1,040
Deferred revenue	962		2,999
Restructuring	1,886		610
Other	4,445		4,248
	$	23,844	$	23,271

Accrued Warranty Obligations

Accrued warranty obligations consist of the following (in thousands):



	December 31,
	2014			2013
Warranty liability at beginning of period	$	2,244		$	2,329
Additions charged to operations	1,345			5,055
Deductions from liability	(2,393		)	(5,140		)
Warranty liability at end of period	$	1,196		$	2,244

Intangible Assets

12 Months Ended

Dec. 31, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets

The Company’s amortizable purchased intangible assets resulting from its 2010 acquisition of Enfora are composed of (in thousands):



	Years ended December 31,
	2014										2013
	Gross		Accumulated Amortization			Accumulated Impairment			Net		Gross		Accumulated Amortization			Impairment			Net
Developed technologies	$	26,000	$	(6,453	)	$	(19,547	)	$	—	$	26,000	$	(6,120	)	$	(19,547	)	$	333
Trade name	12,800		(3,183		)	(8,582		)	1,035		12,800		(2,665		)	(8,582		)	1,553
Other	3,720		(2,011		)	(1,620		)	89		3,720		(1,967		)	(1,620		)	133
Total amortizable purchased intangible assets	$	42,520	$	(11,647	)	$	(29,749	)	$	1,124	$	42,520	$	(10,752	)	$	(29,749	)	$	2,019

The following table presents details of the amortization of purchased intangible assets included in the cost of net revenues and general and administrative expense categories (in thousands):



	Years ended December 31,
	2014		2013
Cost of net revenues	$	333	$	334
General and administrative expenses	562		562
Total amortization expense	$	895	$	896

The following table presents details of the amortization of existing amortizable purchased intangible assets of Enfora that is currently estimated to be expensed in the future (in thousands):



Fiscal year:	Amount
2015	$	562
2016	562
Total	$	1,124

Additionally, at December 31, 2014 and 2013, the Company had net acquired software licenses and other intangibles of $369,000 and $112,000, respectively, net of accumulated amortization of $2.4 million and $2.2 million, respectively. The acquired software licenses represent rights to use certain software necessary for the development and commercial sale of the Company’s products.

The Company monitors its intangible and long-lived asset balances and conducts formal tests when impairment indicators are present. There was no impairment loss recorded for the year ended December 31, 2014 and 2013. For the year ended December 31, 2012, the Company recorded an impairment loss of $49.5 million.

Amortization expense relating to acquired software licenses and other intangibles was $173,000, $113,000 and $196,000 for the years ended December 31, 2014, 2013 and 2012, respectively. Amortization expense related to licenses obtained for research purposes is recorded within research and development expense in the consolidated statements of operations. Amortization expense related to licenses obtained for commercial products is recorded in cost of net revenues in the consolidated statements of operations.

At December 31, 2014, the weighted average remaining useful life of the Company’s long-lived intangible assets including acquired software licenses is 2.0 years.

Derivative Financial Instruments	12 Months Ended
Derivative Financial Instruments	Dec. 31, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Derivative Financial Instruments The Company evaluates stock options, stock warrants or other contracts to determine if those contracts or embedded components of those contracts qualify as derivative financial instruments to be separately accounted for under the relevant sections of FASB Accounting Standards Codification. The result of this accounting treatment could be that the fair value of a financial instrument is classified as a derivative financial instrument and is marked-to-market at each balance sheet date and recorded as an asset or liability. In the event that the fair value is recorded as an asset or liability, the change in fair value is recorded in the statement of operations as other income or other expense. Upon conversion, exercise or expiration of a derivative financial instrument, the instrument is marked to fair value and then that fair value is reclassified to equity. Certain of the Company’s outstanding warrants were treated as derivative liabilities for accounting purposes due to insufficient authorized shares to settle these outstanding contracts at the time of issuance. These common stock purchase warrants did not trade in an active securities market. The Company estimated the fair value of these warrant liabilities using a Monte Carlo simulation option pricing model.

- Definition

The entire disclosure for derivative instruments and hedging activities including, but not limited to, risk management strategies, non-hedging derivative instruments, assets, liabilities, revenue and expenses, and methodologies and assumptions used in determining the amounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
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Reference 5: http://www.xbrl.org/2003/role/presentationRef
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Reference 6: http://www.xbrl.org/2003/role/presentationRef
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Reference 7: http://www.xbrl.org/2003/role/presentationRef
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Reference 8: http://www.xbrl.org/2003/role/presentationRef
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Reference 9: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 10: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 12: http://www.xbrl.org/2003/role/presentationRef
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Reference 13: http://www.xbrl.org/2003/role/presentationRef
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Reference 14: http://www.xbrl.org/2003/role/presentationRef
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Reference 15: http://www.xbrl.org/2003/role/presentationRef
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Reference 16: http://www.xbrl.org/2003/role/presentationRef
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Reference 19: http://www.xbrl.org/2003/role/presentationRef
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Reference 20: http://www.xbrl.org/2003/role/presentationRef
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+ Details

Revolving Credit Facility	12 Months Ended
Revolving Credit Facility	Dec. 31, 2014
Debt Disclosure [Abstract]
Revolving Credit Facility	Revolving Credit Facility On October 31, 2014, the Company and one of its subsidiaries entered into a five-year senior secured revolving credit facility in the amount of $25.0 million (the “Revolver”) with Wells Fargo Bank, National Association, as lender. The amount of borrowings that may be made under the Revolver is based on a borrowing base comprised of a specified percentage of eligible receivables. If, at any time during the term of the Revolver, the amount of borrowings outstanding under the Revolver exceeds the borrowing base then in effect or the maximum revolver amount of $25.0 million, the Company is required to repay such borrowings in an amount sufficient to eliminate such excess. The Revolver includes $3.0 million of availability for letters of credit. The Company may borrow funds under the Revolver from time to time, with interest payable monthly at a base rate determined by using the daily three month LIBOR rate, plus an applicable margin of 2.50% to 3.00% depending on the Company’s liquidity as determined on the last day of each calendar month. The Revolver is secured by a first priority lien on substantially all of the assets of the Company and certain of its subsidiaries, subject to certain exceptions and permitted liens. The Revolver includes customary representations and warranties, as well as customary reporting and financial covenants. At December 31, 2014, the balance of the revolving credit facility was approximately $5.2 million, with a weighted average effective interest rate of 2.8% and the Company had available borrowings of approximately $12.1 million. At December 31, 2014, the Company was in compliance with all financial covenants contained in the credit agreement.

Earnings Per Share

12 Months Ended

Dec. 31, 2014

Earnings Per Share [Abstract]

Earnings Per Share

Basic earnings per share (“EPS”) excludes dilution and is computed by dividing net income (loss) attributable to common stockholders by the weighted-average number of common shares outstanding for the period. Diluted EPS reflects the potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted into common stock using the treasury stock method. Potentially dilutive securities (consisting of warrants, options and restricted stock units (“RSUs”) and employee stock purchase plan (“ESPP”) withholdings calculated using the treasury stock method) are excluded from the diluted EPS computation in loss periods and when the applicable exercise price is greater than the market price on the period end date as their effect would be anti-dilutive.

Weighted average options, restricted stock units, warrants and ESPP shares to acquire a total of 8,130,000 shares, 4,424,000 shares and 5,793,000 shares of common stock for the years ended December 31, 2014, 2013 and 2012, respectively, were outstanding but not included in the computation of diluted earnings per share as their effect was anti-dilutive.



	Year Ended December 31,
	2014			2013			2012
	(in thousands except per share amounts)
Numerator
Net loss attributable to common shareholders:	$	(39,674	)	$	(43,413	)	$	(89,266	)
Denominator
Weighted-average common shares outstanding	37,959			33,948			32,852
Basic and diluted net loss per share attributable to common shareholders	$	(1.05	)	$	(1.28	)	$	(2.72	)

Stockholders' Equity

12 Months Ended

Dec. 31, 2014

Equity [Abstract]

Stockholders' Equity

Stockholders’ Equity

Preferred Stock

The Company has a total of 2,000,000 shares of Series A and Series B preferred stock authorized for issuance at a par value of $0.001 per share. No preferred shares are currently issued or outstanding.

Common Shares Reserved for Future Issuance

The Company has reserved shares of common stock for possible future issuance as of December 31, 2014 and 2013 as follows (in thousands):



	Shares
	2014	2013
Common stock warrants outstanding	4,118	—
Stock options outstanding under the 2009 Omnibus Incentive Compensation Plan and previous plans	3,065	3,933
Restricted stock units outstanding	1,629	1,108
Future grants of awards under the 2009 Omnibus Incentive Compensation Plan	4,463	3,668
Shares available under the Employee Stock Purchase Plan	1,385	1,500
Total shares of common stock reserved for issuance	14,660	10,209

- Definition

The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(d),(e))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21484-112644

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB TOPIC 4.E)
-URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74512-122707

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21488-112644

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.29-31)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SAB TOPIC 4.C)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187143-122770

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21506-112644

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 30
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23285-112656

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Preferred Stock
-URI http://asc.fasb.org/extlink&oid=6521494

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21564-112644

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph d
-Article 4

Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 29, 30, 31
-Article 5

Reference 16: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 4
-Section E

Reference 17: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Article 4

Reference 18: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 4
-Section C

Reference 19: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Article 3

+ Details

Stock Incentive and Employee Stock Purchase Plans

12 Months Ended

Dec. 31, 2014

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock Incentive and Employee Stock Purchase Plans

During the year ended December 31, 2014, the Company granted awards under the 2009 Omnibus Incentive Compensation Plan (the “2009 Plan”). The Compensation Committee of the Board of Directors administers the plan.

Under the 2009 Plan, a maximum of 10.0 million shares of common stock may be issued upon the exercise of stock options, in the form of restricted stock, or in settlement of restricted stock units or other awards, including awards with alternative vesting schedules such as performance-based criteria.

For the years ended December 31, 2014, 2013 and 2012, the following table presents total share-based compensation expense in each functional line item on our consolidated statements of operations (in thousands):



	Year Ended December 31,
	2014		2013		2012
Cost of revenues	$	5	$	84	$	747
Research and development	654		1,114		3,042
Sales and marketing	247		669		1,403
General and administrative	2,682		1,576		2,308
Totals	$	3,588	$	3,443	$	7,500

Included in share-based compensation for the year ended December 31, 2014 is approximately $1.3 million of share-based compensation related to the departure of the Company’s former Chief Executive Officer and the vesting of all of his restricted stock units and options immediately upon his departure in accordance with the terms of his employment agreement.

The per share fair values of stock options granted under the 2009 Plan and rights granted under the ESPP have been estimated with the following assumptions.



	Employee Stock Options						Employee Stock Purchase Rights
	2014		2013		2012		2014		2013		2012
Expected dividend yield:	—	%	—	%	—	%	—	%	—	%	—	%
Risk-free interest rate:	1.4	%	0.8	%	0.9	%	5.4	%	—	%	0.2	%
Volatility:	80	%	63	%	63	%	53	%	—	%	68	%
Expected term (in years):	4.6		6		6		0.4		0.0		1.3

Stock Options

The Compensation Committee of the Board of Directors determines eligibility, vesting schedules and exercise prices for options granted. Options granted under the 2009 Plan and previous plans generally have a term of ten years, and in the case of new hires, generally vest and become exercisable at the rate of 33.3% after one year and ratably on a monthly basis over a period of 24 months thereafter. Subsequent option grants to existing employees generally have the same terms.

A summary of stock option activity for the years ended December 31, 2014 and 2013 is presented below (dollars and shares in thousands, except per share data):



	Stock Options Outstanding		Weighted Average Exercise Price Per Option		Weighted Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value
Options outstanding December 31, 2012	4,282		$	10.25
Granted	425		2.10
Exercised	(38	)	2.68
Cancelled	(736	)	10.21
Options outstanding December 31, 2013	3,933		$	9.45
Granted	1,658		2.92
Exercised	(89	)	2.17
Cancelled	(2,437	)	10.52
Balance December 31, 2014	3,065		$	5.27	4.92 years	$	1,022
Options Exercisable, December 31, 2014	1,769		$	6.80	4.99 years	$	449

The total intrinsic value of options exercised to purchase common stock during the years ended December 31, 2014, 2013 and 2012 was approximately $96,000, $44,000 and $0, respectively. As of December 31, 2014, total unrecognized share-based compensation cost related to unvested stock options was $1,777,000, which is expected to be recognized over a weighted average period of approximately 2.7 years. The total fair value of option awards recognized as expense during the years ended December 31, 2014, 2013 and 2012 was approximately $776,000, $0.8 million and $1.7 million, respectively. The weighted average fair value of option awards granted during years ended December 31, 2014, 2013 and 2012 was $1.48, $1.20 and $1.97, respectively.

Restricted Stock Units

The Company may issue restricted stock units (“RSUs”) that, upon satisfaction of vesting conditions, allow for employees and non-employee directors to receive common stock. Issuances of such awards reduce common stock available under the 2009 Plan for stock incentive awards. The Company measures compensation cost associated with grants of RSUs at fair value, which is generally the closing price of the Company’s stock on the date of grant.

During 2014, the Compensation Committee of the Board of Directors, pursuant to the 2009 Plan, awarded employees a total of 2,658,956 RSUs at fair values ranging from $1.60 per share to $3.55 per share. Generally, one-third of the shares underlying each grant become issuable on the anniversary of each grant date, assuming continued employment with the Company through such date. Based on the fair value of the Company’s common stock price at the grant dates, the Company estimated the aggregate fair value of these awards at approximately $5.7 million. The estimated fair value of these awards is being amortized to compensation expense for each grant on a straight-line basis over the estimated service period.

During 2013, the Compensation Committee of the Board of Directors, pursuant to the 2009 Plan, awarded employees a total of 447,703 RSUs at fair values ranging from $1.74 per share to $4.17 per share. Generally, one-third of the shares underlying each grant become issuable on the anniversary of each grant date, assuming continued employment with the Company through such date. Based on the fair value of the Company’s common stock price at the grant dates, the Company estimated the aggregate fair value of these awards at approximately $0.9 million. The estimated fair value of these awards is being amortized to compensation expense for each grant on a straight-line basis over the estimated service period.

During 2012, the Compensation Committee of the Board of Directors, pursuant to the 2009 Plan, awarded employees a total of 1,015,638 RSUs at fair values ranging from $1.28 per share to $3.58 per share. Generally, one-third of the shares underlying each grant become issuable on the anniversary of each grant date, assuming continued employment with the Company through such date. Based on the fair value of the Company’s common stock price at the grant dates, the Company estimated the aggregate fair value of these awards at approximately $3.4 million. The estimated fair value of these awards is being amortized to compensation expense for each grant on a straight-line basis over the estimated service period.

A summary of restricted stock unit activity for the year ended December 31, 2014 is presented below (shares in thousands):



	Shares
Non-vested at December 31, 2013	1,108
Granted	2,659
Vested	(1,207	)
Forfeited	(931	)
Non-vested at December 31, 2014	1,629

As of December 31, 2014, there was $3.0 million of unrecognized compensation expense related to non-vested RSUs. That expense is expected to be recognized over a weighted average period of 2.7 years. The total fair value of RSUs recognized as expense during the years ended December 31, 2014, 2013 and 2012 was $2.9 million, $2.6 million and $3.4 million, respectively.

2000 Employee Stock Purchase Plan

The Company’s 2000 Employee Stock Purchase Plan (the “ESPP”) permits eligible employees of the Company to purchase newly issued shares of common stock, at a price equal to 85% of the lower of the fair market value on (i) the first day of the offering period or (ii) the last day of each six-month purchase period, through payroll deductions of up to 10% of their annual cash compensation.

On October 22, 2012, the Company announced the termination of the ESPP as of November 15, 2012 due to a lack of available shares. The cancellation of the awards was accounted for as a repurchase for no consideration. The previously unrecognized compensation cost as of November 15, 2012 of $1.0 million was fully expensed in the fourth quarter of 2012.

The Company reinstated the ESPP program effective as of August 16, 2014. The reinstated ESPP authorizes the Company to issue 1,500,132 shares of common for purchase by eligible employees.

During the years ended December 31, 2014, 2013 and 2012, the Company issued 114,791 shares, 0 shares and 1,086,837 shares, respectively, under the ESPP. During the years ended December 31, 2014, 2013 and 2012, the Company received $192,000, $0 and $1.6 million, respectively, in cash through employee withholdings.

The total fair value of ESPP awards recognized as expense during the years ended December 31, 2014, 2013 and 2012 was $101,000, $0 and $1.4 million, respectively.

Securities Purchase Agreement

12 Months Ended

Dec. 31, 2014

Equity [Abstract]

Securities Purchase Agreement

On September 3, 2014, the Company entered into a Purchase Agreement (the “Purchase Agreement”) with HC2 Holdings 2, Inc., a Delaware corporation (the “Investor”), pursuant to which, on September 8, 2014, the Company sold to the Investor (i) 7,363,334 shares of the Company’s common stock, par value $0.001 per share, (ii) a warrant to purchase 4,117,647 shares of common stock at an exercise price of $2.26 per share (the “Warrant”) and (iii) 87,196 shares of the Company’s Series C Convertible Preferred Stock, par value $0.001 per share (the “Series C Preferred Stock”), all at a purchase price of (a) $1.75 per share of common stock plus, in each case, the related Warrant and (b) $17.50 per share of Series C Preferred Stock, for aggregate gross proceeds of approximately $14.4 million (collectively, the “Financing”).

Certain terms of the Warrant and the Series C Preferred Stock were dependent upon the approval by the Company’s stockholders of (i) an increase in the total number of authorized shares of common stock to 100,000,000 shares and (ii) the issuance and sale of the securities pursuant to the Purchase Agreement (including the issuance of all shares of common stock issuable upon the full conversion of the Series C Preferred Stock issued pursuant to the Purchase Agreement and the full exercise of the Warrant) and any change of control that may be deemed to occur as a result of such issuance and sale pursuant to the applicable rules of The NASDAQ Stock Market LLC (together, the “Stockholder Approval”). This Stockholder Approval was obtained on November 17, 2014, at a Special Meeting of the Company's stockholders.

In connection with the issuance of 7,363,334 shares of common stock to the Investor, the Company unreserved 1,651,455 shares of common stock previously approved for issuance pursuant to the Company’s 2009 Omnibus Incentive Compensation Plan and 1,300,000 shares of common stock previously approved for issuance pursuant to the Company’s 2000 ESPP. Accordingly, these shares were not available for grants under the respective plans until the Company’s Stockholders approved an increase in the total number of authorized shares of common stock.

Warrant

In connection with the above transaction the Company issued a Warrant to purchase 4,117,647 shares of common stock at an exercise price of $2.26 per share to the Investor. Pursuant to the terms of the Warrant, the Warrant will generally only be exercisable on a cash basis. However, the Warrant may be exercisable on a cashless basis if and only if a registration statement relating to the issuance of the shares underlying the Warrant is not then effective or an exemption from registration is not available. Subject to certain limitations, the Warrant will be exercisable into shares of common stock during the period commencing on March 8, 2015 and ending on September 8, 2019, the expiration date of the Warrant. The Warrant may be exercised by surrendering to the Company the warrant certificate evidencing the Warrant to be exercised with the accompanying exercise notice, appropriately completed, duly signed and delivered, together with cash payment of the exercise price, if applicable.

The exercise price and the number of shares of common stock issuable upon exercise of the Warrant are subject to adjustment upon certain corporate events, including certain combinations, recapitalizations, reorganizations, reclassifications, stock dividends and stock splits. In the event of an extraordinary transaction, as described in the Warrant and generally including any merger with or into another entity, sale of all or substantially all of the Company’s assets, tender offer or exchange offer, or reclassification of the common stock, each Warrant will automatically be converted into the right to receive, for each share of common stock that would have been issuable upon exercise of such Warrant immediately prior to such transaction, the same kind and amount of securities, cash or property as the holder would have been entitled to receive if the holder had been the holder of common stock immediately prior to the occurrence of such transaction. No fractional shares will be issued upon exercise of the Warrant. The Warrant does not confer upon its holder any voting or other rights as a stockholder of the Company.

Due to insufficient authorized shares to satisfy the exercise of the instrument in full at the time of issuance, the Company determined that the instrument should be treated as a derivative instrument as of September 30, 2014. Liability classification was required because share settlement was not within the control of the Company and the Warrant was not considered to be “indexed to the company’s own stock” and therefore did not qualify for the exemptions provided by ASC 815.

On November 17, 2014, at a Special Meeting of the Stockholders the Company received Stockholder Approval to increase the number of authorized shares of the Company's common stock from 50,000,000 shares to 100,000,000 shares, and accordingly, the Company marked to fair value the above described Warrant instrument and then reclassified that fair value of $8,219,000 to additional paid-in-capital.

Because the Warrant has no comparable market data to determine fair value, the Company hired an independent valuation firm to assist with the valuation of the Warrant. The primary factors used to determine the fair value include: (i) the fair value of the Company’s common stock; (ii) the volatility of the Company’s common stock; (iii) the risk free interest rate; (iv) the estimated likelihood and timing of exercise; and (v) the estimated likelihood and timing of a future financing arrangement. Increases in the market value of the Company’s common stock and volatility, which have the most impact on the fair value of the Warrant, would cause the fair value of the Warrant to change. Because of the significant unobservable inputs used to calculate fair value the Company has classified the Warrant as a Level 3 measurement. The Warrant was measured at fair value on a recurring basis including a final remeasurement immediately preceding its reclassification to additional paid-in-capital on November 17, 2014. Unrealized gains and losses on items measured at fair value are recognized in earnings as other income/(expense). The Company incurred an expense of $3.3 million for the twelve months ended December 31, 2014 related to the Warrant as a result of an increase in the market value of the Company’s common stock.

The following table shows the change to the fair value of the Warrant during the twelve months ended December 31, 2014 (in thousands):



Warrant Derivative Liability
Balance at September 8, 2014 (Transaction Date)	$	4,939
Change in fair value	3,280
Balance at November 17, 2014 (Shareholder Approval Date)	8,219
Reclassification to additional paid-in-capital	(8,219		)
Ending balance at December 31, 2014	$	—

Contingently Redeemable Convertible Series C Preferred Stock

In connection with the Financing the Company issued 87,196 shares of Series C Preferred Stock at $17.50 per share, initially convertible, subject to adjustments, into 871,960 shares of common stock.

On November 17, 2014, at a Special Meeting of the Stockholders, the Company received stockholder approval to increase the number of authorized shares of the Company's common stock from 50,000,000 shares to 100,000,000 shares and each share of Series C Preferred Stock then outstanding automatically converted into the number of shares of common stock by the conversion rate then in effect. Accordingly, each share of Series C Preferred Stock was converted into ten shares of common stock and upon conversion the Company reclassified the Series C Preferred Stock out of mezzanine equity into permanent equity and recognized a beneficial conversion feature ("BCF") of $445,000 in equity due to the resolution of the contingent BCF embedded within the Series C Preferred Stock.

Income Taxes

12 Months Ended

Dec. 31, 2014

Income Tax Disclosure [Abstract]

Income Taxes

Income (loss) before taxes for the years ended December 31, 2014, 2013 and 2012 is comprised of the following (in thousands):



	Year Ended December 31,
	2014			2013			2012
Domestic	$	(39,513	)	$	(44,142	)	$	(88,945	)
Foreign	408			812			290
Loss before taxes	$	(39,105	)	$	(43,330	)	$	(88,655	)

The provision (benefit) for income taxes for the years ended December 31, 2014, 2013 and 2012 is comprised of the following (in thousands):



	Year Ended December 31,
	2014		2013			2012
Current:
Federal	$	—	$	(248	)	$	—
State	21		33			29
Foreign	16		(229		)	74
Total Current	37		(444		)	103
Deferred:
Federal	—		53			14
State	—		—			—
Foreign	87		474			494
Total Deferred	87		527			508
Provision or income taxes	$	124	$	83		$	611

The Company’s net deferred tax assets consist of the following (in thousands):



	December 31,
	2014			2013
Deferred tax assets:
Accrued expenses	$	4,566		$	11,292
Inventory obsolescence provision	2,352			3,539
Depreciation and amortization	4,137			4,136
Deferred rent	555			559
Net operating loss and tax credit carryforwards	76,346			55,010
Stock-based compensation	1,910			4,518
Unrecognized tax benefits	1,296			1,190
Deferred tax assets	91,162			80,244
Deferred tax liabilities:
Amortization of acquired intangibles	(388		)	(699		)
Net deferred tax assets	90,774			79,545
Valuation allowance	(90,774		)	(79,458		)
Net deferred tax assets	$	—		$	87

The Company recognizes federal, state and foreign current tax liabilities or assets based on its estimate of taxes payable to or refundable by tax authorities in the current fiscal year. The Company also recognizes federal, state and foreign deferred tax liabilities or assets based on the Company’s estimate of future tax effects attributable to temporary differences and carryforwards. The Company records a valuation allowance to reduce any deferred tax assets by the amount of any tax benefits that, based on available evidence and judgment, are not expected to be realized.

The Company assesses whether a valuation allowance should be recorded against its deferred tax assets based on the consideration of all available evidence, using a “more likely than not” realization standard. The four sources of taxable income that must be considered in determining whether deferred tax assets will be realized are: (1) future reversals of existing taxable temporary differences (i.e., offset of gross deferred tax assets against gross deferred tax liabilities); (2) taxable income in prior carryback years, if carryback is permitted under the applicable tax law; (3) tax planning strategies; and (4) future taxable income exclusive of reversing temporary differences and carryforwards.

After a review of the four sources of taxable income described above and after being in a three year cumulative loss position at the end of 2014, the Company recognized a full valuation allowance.

During 2014 and 2013, the Company recognized valuation allowances of $11.3 million and $15.6 million, related to its U.S.-based and Canadian deferred tax assets created in those respective years. As a result, no net income tax benefits resulted in the Company’s statements for operations from the operating losses created during those years.

At December 31, 2014, the deferred tax asset valuation allowance consisted of $86.0 million relating to the Company’s domestic deferred tax assets and $4.8 million related to the Company’s Canadian deferred tax assets. At December 31, 2013, the valuation allowance consisted of $74.7 million relating to the Company’s domestic deferred tax assets and $4.7 million related to the Company’s Canadian deferred tax assets.

The provision (benefit) for income taxes reconciles to the amount computed by applying the statutory federal income tax rate of 34% in 2014, 2013 and 2012 to income (loss) before provision for income taxes as follows (in thousands):



	Year Ended December 31,
	2014			2013			2012
Federal tax benefit, at statutory rate	$	(13,447	)	$	(14,732	)	$	(30,142	)
State benefit, net of federal benefit	(1,054		)	(922		)	(757		)
Change in valuation allowance	11,316			15,577			27,486
Change in fair value of warrant	1,203			—			—
Beneficial conversion feature	163			—			—
Research and development credits	3			(1,084		)	(856		)
Share-based compensation	2,402			2,433			1,616
Uncertain tax positions	(62		)	(307		)	(46		)
Goodwill impairment	—			—			3,700
Change in state apportionment	(347		)	(767		)	—
Other	(53		)	(115		)	(390		)
	$	124		$	83		$	611

At December 31, 2014, the Company has U.S. federal net operating loss carryforwards of approximately $174.3 million. Federal net operating loss carryforwards expire at various dates from 2029 through 2034. The Company has California net operating loss carryforwards of approximately $67.1 million, which expire at various dates from 2017 through 2034. The Company has California research and development tax credit carryforwards of approximately $5.4 million. The California tax credits have no expiration date. The Company also has federal research and development tax credit carryforwards of approximately $4.3 million. The federal tax credits expire at various dates from 2027 through 2034.

Pursuant to Internal Revenue Code (IRC) Sections 382 and 383, annual use of the Company’s net operating loss and research and development credit carryforwards may be limited in the event a cumulative change in ownership of more than 50% occurs within a three-year period. The Company is in the process of completing an IRC Section 382/383 analysis and expects to have this analysis completed within the next three months. Due to the existence of the valuation allowance, future changes in the Company’s unrecognized tax benefits will not impact the Company’s effective tax rate.

It is the Company’s intention to reinvest undistributed earnings of its foreign subsidiaries and thereby indefinitely postpone their remittance. Accordingly, no provision has been made for foreign withholding taxes on United States income taxes which may become payable if undistributed earnings of the foreign subsidiary were paid as dividends to the Company.

The Company follows the accounting guidance related to financial statement recognition, measurement and disclosure of uncertain tax positions. The Company recognizes the impact of an uncertain income tax position on an income tax return at the largest amount that is more-likely-than-not to be sustained upon audit by the relevant taxing authority. An uncertain income tax position will not be recognized if it has less than a 50% likelihood of being sustained. During the years ended December 31, 2014 and 2013, the Company recognized approximately $61,000 and $71,000, respectively, of income tax benefit plus $0 and $236,000, respectively, of associated interest due to expiration of the applicable statutes of limitations applicable to certain tax years. As of December 31, 2014 and 2013, the total liability for unrecognized tax benefits was $0 and $61,000, respectively, and is included in other long-term liabilities.

A reconciliation of the beginning and ending amounts of unrecognized tax benefits is as follows (in thousands):




	Amount
Unrecognized tax benefits balance at December 31, 2012	$	33,220
Increases related to current and prior year tax positions	2,653
Settlements and lapses in statutes of limitations	(373		)
Unrecognized tax benefits balance at December 31, 2013	35,500
Increases related to current and prior year tax positions	204
Settlements and lapses in statutes of limitations	(61		)
Unrecognized tax benefits balance at December 31, 2014	$	35,643

There are no tax benefits that, if recognized, would affect the effective tax rate that are included in the balances of unrecognized tax benefits at December 31, 2014.

The Company recognizes interest and penalties related to unrecognized tax benefits in the provision for income taxes. As of December 31, 2014, the same as in 2013, the Company recorded $0 of accrued interest related to uncertain tax positions.

The Company and its subsidiaries file U.S., state, and foreign income tax returns in jurisdictions with various statutes of limitations. In the fourth quarter of 2014, the Company reduced its uncertain tax liability by approximately $61,000, due to the expiration of the statute of limitations applicable to the 2009 taxable year. The Company is also subject to various federal income tax examinations for the 2003 through 2013 calendar years due to the availability of net operating loss carryforwards. The Company believes appropriate provisions for all outstanding issues have been made for all jurisdictions and all open years. However, because audit outcomes and the timing of audit settlements are subject to significant uncertainty, the Company’s current estimate of the total amounts of unrecognized tax benefits could increase or decrease for all open years.

Commitments and Contingencies

12 Months Ended

Dec. 31, 2014

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Operating Leases

The Company leases its office space and certain equipment under non-cancellable operating leases with various terms through 2017. The minimum annual rent on the Company’s office space is subject to increases based on stated rental adjustment terms, property taxes and operating costs and contains rent concessions. For financial reporting purposes, rent expense is recognized on a straight-line basis over the term of the lease. Accordingly, rent expense recognized in excess of rent paid is reflected as deferred rent. Rental expense under operating leases in 2014, 2013 and 2012 was $3.0 million, $4.1 million and $4.5 million, respectively. The Company’s office space lease contains incentives in the form of reimbursement from the landlord for a portion of the costs of leasehold improvements incurred by the Company which are recorded to rent expense on a straight-line basis over the term of the lease.

The minimum future lease payments under non-cancellable operating leases as of December 31, 2014 are as follows (in thousands):



For the Period Ending December 31,	Amount
2015	$	2,744
2016	2,749
2017	537
2018	436
2019	433
Thereafter	221
Total minimum lease payments	$	7,120

Committed Purchase Orders

The Company has entered into purchase commitments totaling approximately $55.0 million with certain contract manufacturers under which the Company has committed to buy a minimum amount of designated products between January 2015 and December 2015. In certain of these agreements, the Company may be required to acquire and pay for such products up to the prescribed minimum or forecasted purchases.

Employee Retention Matters

In connection with the Company’s turnaround efforts, and to retain and encourage employees to assist the Company with its efforts, the Company's Compensation Committee approved an all-employee retention bonus plan ("2014 Retention Bonus Plan") based on achieving certain financial and cash targets. The financial metrics must be met for two consecutive quarter periods during the three quarter periods ending March 31, 2015. At December 31, 2014, the Company accrued approximately $5.5 million of the maximum total target bonus expense based on the Company's financial results for the quarter ended December 31, 2014 and the assessment of the probability of the achievement of the remaining metrics in March 31, 2015. The bonus is being recognized over the requisite service period and the total estimated expense under the 2014 Retention Bonus Plan is $11.0 million in the event the remaining metrics are achieved on March 31, 2015.

Legal Matters

The Company is, from time to time, party to various legal proceedings arising in the ordinary course of business. For example, the Company is currently named as a defendant or co-defendant in some patent infringement lawsuits in the U.S. and is indirectly participating in other U.S. patent infringement actions pursuant to its contractual indemnification obligations to certain customers. Based on an evaluation of these matters and discussions with the Company’s intellectual property litigation counsel, the Company believes that liabilities arising from or sums paid in settlement of these existing matters would not have a material adverse effect on its consolidated results of operations or financial condition.

On September 15, 2008 and September 18, 2008, two putative securities class action lawsuits were filed in the U.S. District Court for the Southern District of California (the “Court”) on behalf of alleged stockholders of the Company. On December 11, 2008, these lawsuits were consolidated into a single action and in May 2010, the consolidated lawsuits were captioned the case In re Novatel Wireless Securities Litigation (the “Litigation”). The Litigation was filed on behalf of persons who purchased the Company’s common stock between February 27, 2007 and September 15, 2008.

On June 23, 2014, the Court entered its judgment approving a final settlement agreement with respect to the Litigation. The settlement agreement does not admit any liability, and the Company and the individual defendants continue to deny any and all liability. Under the terms of the settlement agreement, the plaintiff class agreed to settle all claims asserted in the Litigation and granted the defendants and released parties a full and complete release in exchange for (i) a cash payment of $6.0 million to the plaintiff’s class, approximately $1.7 million of which was to be funded by the Company’s insurers, (ii) the issuance of unrestricted and freely tradable shares of the Company’s stock with an aggregate value of $5.0 million and (iii) the issuance of a $5.0 million secured promissory note, which such note shall having a 30-month maturity, carrying interest at 5% per annum, payable quarterly, and being secured by the accounts receivable of the Company.

On July 1, 2014, the Company and the individual defendants filed a motion to amend the judgment entered on June 23, 2014, specifically requesting the Court to amend the effective date of such judgment to June 20, 2014 - the date the court held the final approval hearing. The Court granted this motion on July 8, 2014, and the judgment date was deemed entered on June 20, 2014.

On July 8, 2014, the Company funded the cash portion of the settlement with $4.3 million of Company cash and $1.7 million previously funded into escrow by the Company’s insurers. On July 17, 2014, the Company issued 2,407,318 unrestricted shares of the Company’s common stock to the class members in satisfaction of the $5.0 million stock payment. The Company also issued a $5.0 million secured promissory note on July 8, 2014, which was paid off by the Company during the fourth quarter of 2014.

On November 17, 2014, the Court granted Plaintiff’s motion to enforce the Settlement and the Court agreed with the Plaintiffs to use an intra-day trading price of the Company's stock for valuation purposes and not the closing price, and accordingly, the Company owed $789,600 which was paid by the Company on December 16, 2014.

As of December 31, 2014, there were no further liabilities accrued in connection with the Litigation.

Credit Facility

On October 31, 2014, the Company and one of its subsidiaries entered into the Revolver with Wells Fargo Bank, National Association. The amount of borrowings that may be made under the Revolver are based on a borrowing base and are comprised of a specified percentage of eligible receivables. If, at any time during the term of the Revolver, the amount of borrowings outstanding under the Revolver exceeds the borrowing base then in effect or the maximum revolver amount of $25.0 million, the Company is required to repay such borrowings in an amount sufficient to eliminate such excess. the Revolver includes $3.0 million of availability for letters of credit. At December 31, 2014, the balance of the revolving credit facility was approximately $5.2 million and the Company had available borrowings of approximately $12.1 million. At December 31, 2014, the Company was in compliance with all financial covenants contained in the credit agreement. (see Note 6)

Under the terms of the Revolver, we are prohibited from declaring or paying any cash dividends on our common stock.

On November 19, 2014, the Company terminated its existing margin credit facility with one of the banks that held the Company's marketable securities. Borrowings under this facility were collateralized by the Company's cash and cash equivalents and marketable securities on deposit at the bank. During the twelve months ended December 31, 2014, the Company did not borrow against the facility and had no outstanding borrowings under this facility at December 31, 2014.

Segment Information and Concentrations of Risk

12 Months Ended

Dec. 31, 2014

Segment Reporting [Abstract]

Segment Information and Concentrations of Risk

Segment Information

The Company operates in the wireless broadband technology industry and senior management makes decisions about allocating resources based on the following reportable segments:

The Mobile Computing Products segment includes the Company's MiFi brand of Intelligent Mobile Hotspot devices, USB modems and embedded modules that enable data transmission and services via cellular wireless networks. All products within the segment represent a single product family.

The M2M Products and Solutions segment includes the Company's M2M embedded modules, integrated M2M communications devices and our service delivery platform, the N4A^TM DM and N4A^TMCMS that provides easy device management and service enablement.

Segment net revenues and segment operating losses represent the primary financial measures used by senior management to assess performance and include the net revenues, cost of net revenues, sales and other operating expenses for which management is held accountable. Segment operating expenses include sales and marketing, research and development, general and administrative and amortization expenses that are directly related to individual segments. Segment losses also include acquisition-related costs, purchase price amortization, impairment charges, restructuring and integration costs.

The table below presents net revenues from external customers, operating loss and identifiable assets for our reportable segments (in thousands):



	Year Ended December 31,
	2014			2013			2012
Net revenues by reportable segment:
Mobile Computing Products	$	145,500		$	297,499		$	312,508
M2M Products and Solutions	39,745			37,554			31,780
Total	$	185,245		$	335,053		$	344,288
Operating loss:
Mobile Computing Products	$	(23,339	)	$	(27,939	)	$	(22,924	)
M2M Products and Solutions	(12,234		)	(15,282		)	(65,819		)
Total	$	(35,573	)	$	(43,221	)	$	(88,743	)



	Year Ended December 31,
	2014		2013
Identifiable assets by reportable segment:
Mobile Computing Products	$	79,368	$	96,516
M2M Products and Solutions	15,652		14,949
Total	$	95,020	$	111,465

The Company has operations in the United States, Canada, Europe, Latin America and Asia. The following table details the geographic concentration of the Company’s assets in the United States, Canada, Europe, Latin America and Asia (in thousands):



	Year Ended December 31,
	2014		2013
United States	$	91,843	$	108,932
Canada	587		808
Europe, Latin America and Asia	2,590		1,725
	$	95,020	$	111,465

The following table details the Company’s concentration of net revenues by geographic region based on shipping destination:



	Year Ended December 31,
	2014		2013		2012
United States and Canada	91.2	%	95.6	%	93.1	%
Latin America	1.0		0.8		2.4
Europe, Middle East, Africa and other	6.6		3.4		4.1
Asia and Australia	1.2		0.2		0.4
	100.0	%	100.0	%	100.0	%

Concentrations of Risk

Substantially all of the Company’s net revenues are derived from sales of wireless access products. Any significant decline in market acceptance of the Company’s products or in the financial condition of the Company’s customers would have an adverse effect on the Company’s results of operations and financial condition.

A significant portion of the Company’s net revenues come from a small number of customers. One customer accounted for 51.6% , 58.0% and 57.5% of 2014, 2013 and 2012 net revenues, respectively. All significant customers are included in the Company’s Mobile Computing Products segment.

A significant portion of the Company’s accounts receivables comes from a small number of customers. At December 31, 2014, the Company had one customer who accounted for 46.1% of total accounts receivable. At December 31, 2013, the Company had three customers who accounted for 24.5%, 12.6% and 12.0% of total accounts receivable.

The Company outsources its manufacturing to several third-party manufacturers. If they were to experience delays, disruptions, capacity constraints or quality control problems in its manufacturing operations, product shipments to the Company’s customers could be delayed or its customers could consequently elect to cancel the underlying order, which would negatively impact the Company’s net revenues and results of operations.

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8981-108599

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8380-108599

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
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-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8933-108599

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 26
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8844-108599

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 35
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8984-108599

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 40
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9031-108599

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 42
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9054-108599

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8538-108599

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
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-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8864-108599

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 31
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8924-108599

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
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-Section 50
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-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8906-108599

+ Details

Retirement Savings Plan	12 Months Ended
Retirement Savings Plan	Dec. 31, 2014
Compensation and Retirement Disclosure [Abstract]
Retirement Savings Plan	Retirement Savings Plan The Company has a defined contribution 401(K) retirement savings plan (the “Plan”). Substantially all of the Company’s U.S. employees are eligible to participate in the Plan after meeting certain minimum age and service requirements. Effective August 1, 2014, the Company suspended its matching program. Employees may make discretionary contributions to the Plan subject to Internal Revenue Service limitations. Employer matching contributions under the plan amounted to approximately $579,000, $1.0 million and $1.2 million for the years ended December 31, 2014, 2013 and 2012, respectively. Employer matching contributions vest over a two-year period. The Company has a registered retirement savings plan for its Canadian employees. Substantially all of the Company’s Canadian employees are eligible to participate in this plan. Employees make discretionary contributions to the plan subject to local limitations. Employer contributions to the Canadian plan amounted to approximately $26,000, $157,000 and $232,000 for the years ended December 31, 2014, 2013 and 2012, respectively.

Restructuring

12 Months Ended

Dec. 31, 2014

Restructuring and Related Activities [Abstract]

Restructuring

In September 2013, the Company commenced certain restructuring initiatives (“2013 Initiatives”) including the closure of the Company’s development site in Calgary, Canada, and the consolidation of certain supply chain management activities. During February and March 2014, the Company commenced additional reduction in force initiatives resulting in headcount reductions of 41 employees and 21 employees, respectively, and during June 2014 a further headcount reduction of five employees at its Calgary, Canada site.

In connection with the 2013 Initiatives and for the twelve months ended December 31, 2014, the Company recorded restructuring charges of $2.9 million, which consisted of $1.7 million in employee severance costs and $1.2 million in facility exit related costs related to ongoing assessment of estimates of the timing and amounts of sublease income.

Total restructuring charges incurred to date relating to the 2013 Initiatives discussed above, are approximately $6.2 million, including restructuring charges recorded during the year ended December 31, 2013 of approximately $3.3 million.

The Company accounts for facility exit costs in accordance with FASB ASC Topic 420, Exit or Disposal Cost Obligations, which requires that a liability for such costs be recognized and measured initially at fair value on the cease-use date based on remaining lease rentals, adjusted for the effects of any prepaid or deferred items recognized, reduced by the estimated sublease rentals that could be reasonably obtained even if it is not the intent to sublease.

The Company is required to estimate future sublease income and future net operating expenses of the facilities, among other expenses. The most significant of these estimates relate to the timing and extent of future sublease income which reduce lease obligations, and the probability that such sublease income will be realized. The Company based estimates of sublease income, in part, on information from third party real estate experts, current market conditions and rental rates, an assessment of the time period over which reasonable estimates could be made, and the location of the respective facility, among other factors. Further adjustments to the facility exit liability accrual will be required in future periods if actual exit costs or sublease income differ from amounts currently expected. Exit costs the Company records under these provisions are neither associated with, nor do they benefit, continuing activities.

In June 2014, the Company commenced certain restructuring initiatives relating to the reorganization of executive level management (“2014 Initiatives”), which included among other actions the replacement of the former Chief Executive Officer with the current Chief Executive Officer. In connection with the 2014 Initiatives, and for the twelve months ended December 31, 2014, the Company recorded restructuring charges of approximately $4.9 million, including approximately $1.3 million related to the accelerated vesting of all of former Chief Executive Officer's restricted stock units and options which vested immediately upon his departure.

The following table sets forth activity in the restructuring liability for the twelve months ended December 31, 2014 (in thousands):



	2013 Initiatives						2014 Initiatives
	Employee Severance Costs			Facility Exit Related Costs			Employment Contract Costs			Share-based Compensation Costs			Total
Balance at December 31, 2013	$	—		$	881		$	—		$	—		$	881
Accruals	1,713			1,170			3,579			1,298			7,760
Payments	(1,713		)	(1,819		)	(1,828		)	—			(5,360		)
Share-based compensation	—			—			—			(1,298		)	(1,298		)
Balance at December 31, 2014	$	—		$	232		$	1,751		$	—		$	1,983

The balance of the restructuring liability at December 31, 2014 consists of approximately $1.9 million in current liabilities and $60,000 in non-current liabilities. The balance of the restructuring liability at December 31, 2014 is anticipated to be fully distributed by the end of 2016, at the expiration of the Company’s facility lease in San Diego.

Quarterly Financial Information (Unaudited)

12 Months Ended

Dec. 31, 2014

Quarterly Financial Information Disclosure [Abstract]

Quarterly Financial Information (Unaudited)

The following is a summary of unaudited quarterly results of operations for the years ended December 31, 2014 and 2013.



	Quarter
	First			Second			Third			Fourth
	(in thousands, except per share amounts)
2014
Net revenues	$	48,284		$	37,270		$	44,330		$	55,361
Gross profit	10,068			3,987			10,486			12,506
Net loss attributable to common shareholders	(8,981		)	(17,415		)	(8,832		)	(4,446		)
Basic net loss per common share	(0.26		)	(0.51		)	(0.23		)	(0.10		)
Diluted net loss per common share	(0.26		)	(0.51		)	(0.23		)	(0.13		)
2013
Net revenues	$	85,921		$	91,124		$	92,673		$	65,335
Gross profit	16,848			19,024			20,383			12,039
Net loss attributable to common shareholders	(9,122		)	(7,892		)	(5,093		)	(21,306		)
Basic and diluted net loss per common share	(0.27		)	(0.23		)	(0.15		)	(0.63		)

Schedule II - Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2014

Valuation and Qualifying Accounts [Abstract]

Schedule II - Valuation and Qualifying Accounts

SCHEDULE II

NOVATEL WIRELESS, INC.

Valuation and Qualifying Accounts

For the Years Ended December 31, 2014, 2013 and 2012 (in thousands):



	Balance At Beginning of Year		Additions Charged to Operations		Deductions From Reserves		Balance At End of Year
Allowance for Doubtful Accounts:
December 31, 2014	$	2,449	$	86	$	2,318	$	217
December 31, 2013	627		1,936		114		2,449
December 31, 2012	245		439		57		627
Warranty:
December 31, 2014	2,244		1,345		2,393		1,196
December 31, 2013	2,329		5,055		5,140		2,244
December 31, 2012	1,525		6,261		5,457		2,329
Deferred Tax Asset Valuation Allowance:
December 31, 2014	79,458		11,316		—		90,774
December 31, 2013	63,881		15,577		—		79,458
December 31, 2012	36,395		27,486		—		63,881
Sales Returns and Allowances:
December 31, 2014	727		—		572		155
December 31, 2013	911		196		380		727
December 31, 2012	545		497		131		911

Nature of Business and Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2014
Accounting Policies [Abstract]
Basis of Presentation	ur ability to transition to attaining profitable operations is dependent upon achieving a level of revenues adequate to support our cost structure. If events or circumstances occur such that we do not meet our operating plan as expected, we may be required to reduce planned research and development activities, incur additional restructuring charges or reduce other operating expenses which could have an adverse impact on our ability to achieve our intended business objectives. These additional reductions in expenditures , if required, could have an adverse impact on our ability to achieve certain of our business objectives during 2015. We believe our working capital resources are sufficient to fund our operations through at least December 31, 2015.
Principles of Consolidation	Principles of Consolidation The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All intercompany transactions and balances have been eliminated in consolidation.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with accounting principles generally accepted in the U.S. requires management to make estimates and assumptions. These estimates and assumptions affect the reported amounts of assets, liabilities, revenues and expenses, and disclosure of contingent liabilities. Actual results could differ materially from these estimates. Significant estimates include allowance for doubtful accounts receivable, provision for excess and obsolete inventory, valuation of intangible and long-lived assets, fair value of warrant liability, accruals relating to litigation, restructuring, and retention bonus, provision for warranty costs, income taxes and share-based compensation expense.
Cash and Cash Equivalents	Cash and Cash Equivalents Cash and cash equivalents include highly liquid investments with original maturities of three months or less. Cash and cash equivalents consist of demand deposits, US Treasury securities, and money market funds. Cash and cash equivalents are recorded at market value, which approximates cost. Gains and losses associated with the Company’s foreign currency denominated demand deposits are recorded as a component of other income (expense).
Allowance for Doubtful Accounts Receivable	Allowance for Doubtful Accounts Receivable The Company provides an allowance for its accounts receivable for estimated losses that may result from its customers’ inability to pay. The Company determines the amount of the allowance by analyzing known uncollectible accounts, aged receivables, economic conditions, historical losses, and changes in customer payment cycles and our customers’ credit-worthiness. Amounts later determined and specifically identified to be uncollectible are charged or written off against this allowance. To minimize the likelihood of uncollectibility, the Company reviews its customers’ credit-worthiness periodically based on credit scores generated by independent credit reporting services, its experience with its customers and the economic condition of its customers’ industries. Material differences may result in the amount and timing of expense for any period if the Company were to make different judgments or utilize different estimates.
Marketable Securities	Marketable Securities Marketable securities predominantly consist of highly liquid debt investments with a maturity of greater than three months when purchased. The Company did not have any short or long-term marketable securities at December 31, 2014. All of the Company’s marketable debt securities are treated as “available-for-sale.” While it is the Company’s intent to hold its debt securities until maturity, the Company may sell certain securities for cash flow purposes. Thus, the Company’s marketable debt securities are classified as available-for-sale and are carried on the balance sheet at fair value with the related unrealized gains and losses included in accumulated other comprehensive loss, a component of stockholders’ equity. Realized gains and losses on the sale of marketable securities are determined using the specific-identification method. The Company determines the fair value of its financial assets and liabilities by reference to the hierarchy of inputs which consists of three levels: Level 1 fair values are valuations based on quoted market prices in active markets for identical assets or liabilities that the entity has the ability to access; Level 2 fair values are those valuations based on quoted prices for similar assets or liabilities, quoted prices in markets that are not active, or other inputs that are observable or can be corroborated by observable data for substantially the full term of the assets or liabilities; and Level 3 fair values are valuations based on inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. All securities whose maturity or sale is expected within one year are classified as “current” on the consolidated balance sheet. All other securities are classified as “long-term” on the consolidated balance sheet.
Inventories and Provision for Excess and Obsolete Inventory	Inventories and Provision for Excess and Obsolete Inventory Inventories are stated at the lower of cost (first-in, first-out method) or market. Shipping and handling costs are classified as a component of cost of net revenues in the consolidated statements of operations. The Company reviews the components of its inventory and its inventory purchase commitments on a regular basis for excess and obsolete inventory based on estimated future usage and sales. Write-downs in inventory value or losses on inventory purchase commitments depend on various items, including factors related to customer demand, economic and competitive conditions, technological advances or new product introductions by the Company or its customers that vary from its current expectations. Whenever inventory is written down, a new cost basis is established and the inventory is not subsequently written up if market conditions improve. The Company believes that, when made, the estimates used in calculating the inventory provision are reasonable and properly reflect the risk of excess and obsolete inventory. If customer demand for the Company’s inventory is substantially less than its estimates, inventory write-downs may be required, which could have a material adverse effect on its consolidated financial statements.
Property and Equipment	Property and Equipment Property and equipment are initially stated at cost and depreciated using the straight-line method. Test equipment, computer equipment, purchased software, furniture, and fixtures and product tooling are depreciated over lives ranging from eighteen months to five years and leasehold improvements are depreciated over the shorter of the related remaining lease period or useful life. Amortization of assets held under capital leases is included in depreciation expense. Expenditures for repairs and maintenance are expensed as incurred. Expenditures for major renewals and betterments that extend the useful lives of existing property and equipment are capitalized and depreciated. Upon retirement or disposition of property and equipment, any resulting gain or loss is recognized in the consolidated statements of operations.
Intangible Assets	Intangible Assets Intangible assets include purchased intangible assets acquired from Enfora, Inc. (“Enfora”) on November 30, 2010 and the costs of non-exclusive and perpetual worldwide software technology licenses. These costs are amortized on an accelerated basis or on a straight-line basis over the estimated useful lives of the assets, depending on the anticipated utilization of the asset. The majority of intangible assets relate to the developed technologies and trade name resulting from the acquisition of Enfora. Developed technologies are amortized on a straight-line basis over the remaining one year useful life. Trade name is amortized on a straight-line basis over the remaining useful life of three years.
Long-Lived Assets	Long-Lived Assets The Company periodically evaluates the carrying value of the unamortized balances of its long-lived assets, including property and equipment and intangible assets, to determine whether impairment of these assets has occurred or whether a revision to the related amortization periods should be made. When the carrying value of an asset exceeds the associated undiscounted expected future cash flows, it is considered to be impaired and is written down to fair value. Fair value is determined based on an evaluation of the assets associated undiscounted future cash flows or appraised value. This evaluation is based on management’s projections of the undiscounted future cash flows associated with each class of asset. If management’s evaluation indicates that the carrying values of these assets are impaired, such impairment is recognized by a reduction of the applicable asset carrying value to its estimated fair value and the impairment is expensed as a part of continuing operations.
Goodwill	Goodwill Goodwill represents the excess of the purchase price of an acquired enterprise over the fair value assigned to assets acquired and liabilities assumed in a business combination. Goodwill is allocated as of the date of the business combination to the reporting units that are expected to benefit from the synergies of the business combination. Goodwill is considered to be impaired if the Company determines that the carrying value of the reporting unit to which the goodwill has been assigned exceeds its estimated fair value. As of December 31, 2014, all historical goodwill had been fully impaired.
Contingent Consideration	.
Revenue Recognition	Revenue Recognition The Company’s revenue is principally generated from the sale of wireless modems to wireless operators, OEM customers and value added resellers and distributors. In addition, the Company generates revenue from the sale of asset-management solutions utilizing wireless technology and M2M communication devices predominantly to transportation and industrial companies, medical device manufacturers and security system providers. Revenue from product sales is generally recognized upon the later of transfer of title or delivery of the product to the customer. Where the transfer of title or risk of loss is contingent on the customer’s acceptance of the product, we will not recognize revenue until both title and risk of loss have transferred to the customer. We record deferred revenue for cash payments received from customers in advance of when revenue recognition criteria are met. We have granted price protection to certain customers in accordance with the provisions of the respective contracts and track pricing and other terms offered to customers buying similar products to assess compliance with these provisions. We estimate the amount of price protection for current period product sales utilizing historical experience and information regarding customer inventory levels. To date, we have not incurred material price protection obligations. Revenues from sales to certain customers are subject to cooperative advertising allowances. Cooperative advertising allowances are recorded as an operating expense to the extent that the advertising benefit is separable from the revenue transaction and the fair value of that advertising benefit is determinable. To the extent that such allowances either do not provide a separable benefit to us, or the fair value of the advertising benefit cannot be reliably estimated, such amounts are recorded as a reduction of revenue. We establish reserves for estimated product returns allowances in the period in which revenue is recognized. In estimating future product returns, we consider various factors, including our stated return policies and practices and historical trends. Predominantly all of our revenues represent the sale of hardware with accompanied software that is essential to the functionality of the hardware. The Company records revenue associated with the agreed upon price on hardware sales, and accrues any estimated costs of post-delivery performance obligations such as warranty obligations. The Company considers the four basic revenue recognition criteria discussed under Staff Accounting Bulletin No. 104 when assessing appropriate revenue recognition as follows: Criterion #1—Persuasive evidence of an arrangement must exist; Criterion #2—Delivery has occurred; Criterion #3—The Company’s price to the buyer must be fixed or determinable; and, Criterion #4—Collectability is reasonably assured. For multiple element arrangements, total consideration received from customers is allocated to the elements. This may include hardware, non-essential software elements and/or essential software, based on a relative selling price. The accounting guidance establishes a hierarchy to determine the selling price to be used for allocating revenue to deliverables as follows: (i) vendors specific objective evidence (VSOE), (ii) third party evidence (TPE), and (iii) best estimate of selling price (BESP). Because the Company has neither VSOE nor TPE, revenue has been based on the Company’s BESP. Amounts allocated to the delivered hardware and the related essential software are recognized at the time of the sale provided all other revenue recognition criteria have been met. Amounts allocated to other deliverables based upon BESP are recognized in the period the revenue recognition criteria have been met. Our process for determining its BESP for deliverables without VSOE or TPE considers multiple factors that may vary depending upon the unique facts and circumstances related to each deliverable. Our prices are determined based upon cost to produce our products, expected order quantities, acceptance in the marketplace and internal pricing parameters. In addition, when developing BESPs for products we may consider other factors as appropriate including the pricing of competitive alternatives if they exist, and product-specific business objectives. We account for nonessential software licenses and related post contract support (PCS) under multiple element arrangements by recognizing revenue for such arrangements ratably over the term of the PCS as we have not established VSOE for the PCS element. For the years ended December 31, 2014, 2013 and 2012, we have not recorded any significant revenues from multiple element or software arrangements.
Research and Development Costs	Research and Development Costs Research and development costs are expensed as incurred.
Warranty Costs	Warranty Costs The Company accrues warranty costs based on estimates of future warranty related replacement, repairs or rework of products. Our warranty policy generally provides one to three years of coverage for products following the date of purchase. The Company’s policy is to accrue the estimated cost of warranty coverage as a component of cost of revenue in the accompanying consolidated statements of operations at the time revenue is recognized. In estimating our future warranty obligations the Company considers various factors, including the historical frequency and volume of claims and the cost to replace or repair products under warranty. The warranty provision for our products is determined by using a financial model to estimate future warranty costs. The Company’s financial model takes into consideration actual product failure rates; estimated replacement, repair or rework expenses; and potential risks associated with our different products. The risk levels, warranty cost information and failure rates used within this model are reviewed throughout the year and updated, if and when, these inputs change.
Income Taxes	Income Taxes The Company recognizes federal, state and foreign current tax liabilities or assets based on our estimate of taxes payable to or refundable by tax authorities in the current fiscal year. The Company also recognizes federal, state and foreign deferred tax liabilities or assets based on the Company’s estimate of future tax effects attributable to temporary differences and carryforwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. Deferred tax assets are reduced by valuation allowances if, based on the consideration of all available evidence, it is more likely than not that some portion of the deferred tax asset will not be realized. The Company evaluates deferred income taxes on a quarterly basis to determine if valuation allowances are required by considering available evidence. If the Company is unable to generate sufficient future taxable income in certain tax jurisdictions, or if there is a material change in the actual effective tax rates or time period within which the underlying temporary differences become taxable or deductible, the Company could be required to increase its valuation allowance against its deferred tax assets which could result in an increase in the Company’s effective tax rate and an adverse impact on operating results. The Company will continue to evaluate the necessity of the valuation allowance based on the remaining deferred tax assets. The Company follows the accounting guidance related to financial statement recognition, measurement and disclosure of uncertain tax positions. The Company recognizes the impact of an uncertain income tax position on an income tax return at the largest amount that is more-likely-than-not to be sustained upon audit by the relevant taxing authority. An uncertain income tax position will not be recognized if it has less than a 50% likelihood of being sustained. Uncertain tax positions are recognized in the first subsequent financial reporting period in which that threshold is met or from changes in circumstances such as the expiration of applicable statutes of limitations.
Litigation	Litigation The Company is currently involved in certain legal proceedings. The Company will record a loss when the Company determines information available prior to the issuance of the financial statements indicates the loss is both probable and estimable. Where a liability is probable and there is a range of estimated loss with no best estimate in the range, the Company records the minimum estimated liability related to the claim. As additional information becomes available, the Company assesses the potential liability related to the Company’s pending litigation and revises its estimates, if necessary. The Company’s policy is to expense litigation costs as incurred.
Share-Based Compensation	Share-Based Compensation The Company has granted stock options to employees and restricted stock units. The Company also has an employee stock purchase plan (“ESPP”) for eligible employees. The Company measures the compensation cost associated with all share-based payments based on grant date fair values. The fair value of each employee stock option and employee stock purchase right is estimated on the date of grant using an option pricing model that meets certain requirements. The Company currently uses the Black-Scholes option pricing model to estimate the fair value of its stock options and stock purchase rights. The Black-Scholes model is considered an acceptable model but the fair values generated by it may not be indicative of the actual fair values of our equity awards as it does not consider certain factors important to those awards to employees, such as continued employment and periodic vesting requirements as well as limited transferability. The determination of the fair value of share-based payment awards utilizing the Black-Scholes model is affected by our stock price and a number of assumptions, including expected volatility, expected term, risk-free interest rate and expected dividends. For grants of stock options, the Company uses a blend of historical and implied volatility for traded options on its stock in order to estimate the expected volatility assumption required in the Black-Scholes model. The Company’s use of a blended volatility estimate in computing the expected volatility assumption for stock options is based on its belief that while that implied volatility is representative of expected future volatility, the historical volatility over the expected term of the award is also an indicator of expected future volatility. Due to the short duration of employee stock purchase rights under our ESPP, the Company utilizes historical volatility in order to estimate the expected volatility assumption of the Black-Scholes model. The expected term of stock options granted is estimated using historical experience. The risk-free interest rate assumption is based on observed interest rates appropriate for the expected terms of our stock options and employee stock purchase rights. The dividend yield assumption is based on the Company’s history and expectation of no dividend payouts. The Company estimates forfeitures at the time of grant and revises these estimates, if necessary, in subsequent periods if actual forfeitures differ from those estimates. The Company estimates its forfeiture rate assumption for all types of share based compensation awards based historical forfeiture rates related to each category of award. Compensation cost associated with grants of restricted stock units are measured at fair value, which has historically been the closing price of the Company’s stock on the date of grant. The Company recognizes share-based compensation expense using the straight-line method for awards that contain only service conditions. For awards that contain performance conditions, the Company recognizes the share-based compensation expense on a straight-line basis for each vesting tranche. The Company evaluates the assumptions used to value stock awards on a quarterly basis. If factors change and the Company employs different assumptions, share-based compensation expense may differ significantly from what it has recorded in the past. If there are any modifications or cancellations of the underlying unvested securities, the Company may be required to accelerate, increase or cancel any remaining unearned share-based compensation expense.
Computation of Net Income (Loss) Per Share	Computation of Net Loss Per Share Attributable to Common Shareholders The Company computes basic and diluted per share data for all periods for which a statement of operations is presented. Basic net loss per share excludes dilution and is computed by dividing the net loss by the weighted-average number of shares that were outstanding during the period. Diluted EPS reflects the potential dilution that could occur if securities or other contracts to acquire common stock were exercised or converted into common stock. Potential dilutive securities are excluded from the diluted EPS computation in loss periods as their effect would be anti-dilutive. For all periods presented, there is no difference in the number of shares used to calculate basic and diluted shares outstanding due to the Company’s net loss position.
Fair Value of Financial Instruments	Fair Value of Financial Instruments The Company’s fair value measurements relate to its cash equivalents, marketable debt securities, and marketable equity securities, which are classified pursuant to authoritative guidance for fair value measurements. The Company places its cash equivalents and marketable debt securities in instruments that meet credit quality standards, as specified in its investment policy guidelines. These guidelines also limit the amount of credit exposure to any one issue, issuer or type of instrument. Our financial instruments consist principally of cash and cash equivalents, short-term and long-term marketable securities, warrants and short-term and long-term debt. The Company’s cash and cash equivalents consist of our investments in money market securities, time deposits with maturities of less than three months and treasury bills. The Company’s marketable securities consist primarily of government agency securities, municipal bonds, time deposits and investment-grade corporate bonds. From time to time, the Company may utilize foreign exchange forward contracts. These contracts are valued using pricing models that take into account the currency rates as of the balance sheet date.
Comprehensive Loss	Comprehensive Loss Comprehensive loss consists of net earnings and unrealized gains and losses on available-for-sale securities. Recent Accounting Pronouncements From time to time, new accounting pronouncements are issued by the Financial Accounting Standards Board (the “FASB”), which are adopted by the Company as of the specified date. Unless otherwise discussed, management believes the impact of recently issued standards, which are not yet effective, will not have a material impact on its consolidated financial statements upon adoption. In August 2014, the FASB issued Accounting Standards Update ("ASU") No. 2014-15, Presentation of Financial Statements-Going Concern (Subtopic 205-40): Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern. Under the new guidance, management will be required to assess an entity’s ability to continue as a going concern, and to provide related footnote disclosures in certain circumstances. The provisions of this ASU are effective for annual periods beginning after December 15, 2016, and for annual and interim periods thereafter. The Company is currently evaluating the potential changes from this ASU to its future financial reporting and disclosures. In June 2014, the FASB issued ASU No. 2014-12, Compensation—Stock Compensation: Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved after the Requisite Service Period. The standard requires that a performance target that affects vesting and that could be achieved after the requisite service period be treated as a performance condition. Entities are required to apply the standard for annual periods and interim periods within those annual periods, beginning after December 15, 2015. Early application is permitted. The Company is currently assessing the impact of this new guidance. In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers, which requires a reporting entity to recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The guidance in this ASU affects any entity that either enters into contracts with customers to transfer goods or services or enters into contracts for the transfer of nonfinancial assets unless those contracts are within the scope of other standards. This standard will be effective for annual reporting periods beginning after December 15, 2016. The Company is currently assessing the impact of this new guidance.
Fair Value Measurement	Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (exit price). A fair value measurement reflects the assumptions market participants would use in pricing an asset or liability based on the best available information. These assumptions include the risk inherent in a particular valuation technique (such as a pricing model) and the risks inherent in the inputs to the model. We classify our inputs to measure fair value using a three-level hierarchy that maximizes the use of observable inputs and minimizes the use of unobservable inputs by requiring that the most observable inputs be used when available. The categorization of financial instruments within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement. The hierarchy is prioritized into three levels (with Level 3 being the lowest) defined as follows: Level 1: Pricing inputs are based on quoted market prices for identical assets or liabilities in active markets (e.g., NYSE). Active markets are those in which transactions for the asset or liability occur in sufficient frequency and volume to provide pricing information on an ongoing basis. Level 2: Pricing inputs include benchmark yields, trade data, reported trades and broker dealer quotes, two-sided markets and industry and economic events, yield to maturity, Municipal Securities Rule Making Board reported trades and vendor trading platform data. Level 2 includes those financial instruments that are valued using various pricing services and broker pricing information including Electronic Communication Networks and broker feeds. Level 3: Pricing inputs include significant inputs that are generally less observable from objective sources, including the Company’s own assumptions.
Segment Information	Segment Information The Company operates in the wireless broadband technology industry and senior management makes decisions about allocating resources based on the following reportable segments: The Mobile Computing Products segment includes the Company's MiFi brand of Intelligent Mobile Hotspot devices, USB modems and embedded modules that enable data transmission and services via cellular wireless networks. All products within the segment represent a single product family. The M2M Products and Solutions segment includes the Company's M2M embedded modules, integrated M2M communications devices and our service delivery platform, the N4A^TM DM and N4A^TMCMS that provides easy device management and service enablement. Segment net revenues and segment operating losses represent the primary financial measures used by senior management to assess performance and include the net revenues, cost of net revenues, sales and other operating expenses for which management is held accountable. Segment operating expenses include sales and marketing, research and development, general and administrative and amortization expenses that are directly related to individual segments. Segment losses also include acquisition-related costs, purchase price amortization, impairment charges, restructuring and integration costs.

Fair Value Measurement of Assets and Liabilities (Tables)

12 Months Ended

Dec. 31, 2014

Fair Value Disclosures [Abstract]

Summary of Company's Financial Instruments, Fair Value on a Recurring Basis



Description	Balance as of December 31, 2014		Level 1		Level 2
Assets:
Cash equivalents
Money market funds	$	1,134	$	1,134	$	—
Certificates of deposit	980		—		980
Total cash equivalents	$	2,114	$	1,134	$	980



Description	Balance as of December 31, 2013		Level 1		Level 2
Assets:
Cash equivalents
US Treasury securities	$	487	$	—	$	487
Total cash equivalents	487		—		487
Short-term marketable securities:
Available-for-sale:
Government agency securities	2,351		—		2,351
Municipal bonds	2,829		—		2,829
Certificates of deposit	3,360		—		3,360
Corporate debentures / bonds	10,638		—		10,638
Total short-term marketable securities	19,178		—		19,178
Long-term marketable securities:
Available-for-sale:
Certificates of deposit	1,300		—		1,300
Corporate debentures / bonds	2,143		—		2,143
Total long-term marketable securities	3,443		—		3,443
Total financial assets	$	23,108	$	—	$	23,108

Fair Value, Liabilities Measured on Recurring and Nonrecurring Basis

Carrying values and fair values of financial instruments that are not carried at fair value in the consolidated balance sheets are as follows (in thousands):



	As of December 31, 2014
Description	Carrying Amount		Fair Value
Revolving credit facility	$	5,158	$	5,158
Total other financial instruments	$	5,158	$	5,158

Financial Statement Details (Tables)

12 Months Ended

Dec. 31, 2014

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Summary of Marketable Securities Available-for-Sale



December 31, 2013	Maturity in Years	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
Available-for-sale:
Government agency securities	1 or less	$	2,350	$	1	$	—	$	2,351
Municipal bonds	1 or less	2,828		1		—		2,829
Certificates of deposit	1 or less	3,360		—		—		3,360
Corporate debentures / bonds	1 or less	10,635		3		—		10,638
Total short-term marketable securities		19,173		5		—		19,178
Available-for-sale:
Certificates of deposit	1 to 2	1,300		—		—		1,300
Corporate debentures / bonds	1 to 2	2,143		—		—		2,143
Total long-term marketable securities		3,443		—		—		3,443
		$	22,616	$	5	$	—	$	22,621

Summary of Inventories

Inventories consist of the following (in thousands):



	December 31,
	2014		2013
Finished goods	$	33,045	$	20,870
Raw materials and components	4,758		6,923
	$	37,803	$	27,793

Summary of Property and Equipment

Property and equipment consists of the following (in thousands):



	December 31,
	2014			2013
Test equipment	$	53,019		$	52,108
Computer equipment and purchased software	11,247			10,814
Product tooling	3,535			3,204
Furniture and fixtures	1,824			2,015
Leasehold improvements	4,103			4,094
	73,728			72,235
Less—accumulated depreciation and amortization	(68,449		)	(62,334		)
	$	5,279		$	9,901

Summary of Accrued Expenses

Accrued expenses consist of the following (in thousands):



	December 31,
	2014		2013
Royalties	$	4,035	$	4,243
Payroll and related expenses	8,038		4,828
Product warranty	1,196		2,244
Market development funds and price protection	2,502		3,059
Professional fees	780		1,040
Deferred revenue	962		2,999
Restructuring	1,886		610
Other	4,445		4,248
	$	23,844	$	23,271

Summary of Accrued Warranty Obligations

Accrued warranty obligations consist of the following (in thousands):



	December 31,
	2014			2013
Warranty liability at beginning of period	$	2,244		$	2,329
Additions charged to operations	1,345			5,055
Deductions from liability	(2,393		)	(5,140		)
Warranty liability at end of period	$	1,196		$	2,244

Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Amortizable Purchased Intangible Assets from Acquisition

The Company’s amortizable purchased intangible assets resulting from its 2010 acquisition of Enfora are composed of (in thousands):



	Years ended December 31,
	2014										2013
	Gross		Accumulated Amortization			Accumulated Impairment			Net		Gross		Accumulated Amortization			Impairment			Net
Developed technologies	$	26,000	$	(6,453	)	$	(19,547	)	$	—	$	26,000	$	(6,120	)	$	(19,547	)	$	333
Trade name	12,800		(3,183		)	(8,582		)	1,035		12,800		(2,665		)	(8,582		)	1,553
Other	3,720		(2,011		)	(1,620		)	89		3,720		(1,967		)	(1,620		)	133
Total amortizable purchased intangible assets	$	42,520	$	(11,647	)	$	(29,749	)	$	1,124	$	42,520	$	(10,752	)	$	(29,749	)	$	2,019

Summary of Amortization Expenses of Purchased Intangible Assets

The following table presents details of the amortization of purchased intangible assets included in the cost of net revenues and general and administrative expense categories (in thousands):



	Years ended December 31,
	2014		2013
Cost of net revenues	$	333	$	334
General and administrative expenses	562		562
Total amortization expense	$	895	$	896

Schedule of Amortization Expense of Purchased Intangible Assets Expected to be Recognized

The following table presents details of the amortization of existing amortizable purchased intangible assets of Enfora that is currently estimated to be expensed in the future (in thousands):



Fiscal year:	Amount
2015	$	562
2016	562
Total	$	1,124

Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2014

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted



	Year Ended December 31,
	2014			2013			2012
	(in thousands except per share amounts)
Numerator
Net loss attributable to common shareholders:	$	(39,674	)	$	(43,413	)	$	(89,266	)
Denominator
Weighted-average common shares outstanding	37,959			33,948			32,852
Basic and diluted net loss per share attributable to common shareholders	$	(1.05	)	$	(1.28	)	$	(2.72	)

Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2014

Equity [Abstract]

Summary of Common Shares Reserved for Future Issuance

The Company has reserved shares of common stock for possible future issuance as of December 31, 2014 and 2013 as follows (in thousands):



	Shares
	2014	2013
Common stock warrants outstanding	4,118	—
Stock options outstanding under the 2009 Omnibus Incentive Compensation Plan and previous plans	3,065	3,933
Restricted stock units outstanding	1,629	1,108
Future grants of awards under the 2009 Omnibus Incentive Compensation Plan	4,463	3,668
Shares available under the Employee Stock Purchase Plan	1,385	1,500
Total shares of common stock reserved for issuance	14,660	10,209

Stock Incentive and Employee Stock Purchase Plans (Tables)

12 Months Ended

Dec. 31, 2014

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Summary of Share-Based Compensation Expense



	Year Ended December 31,
	2014		2013		2012
Cost of revenues	$	5	$	84	$	747
Research and development	654		1,114		3,042
Sales and marketing	247		669		1,403
General and administrative	2,682		1,576		2,308
Totals	$	3,588	$	3,443	$	7,500

Summary of per Share Fair Values of Stock Options Granted under 2009 Plan and Rights Granted under ESPP

The per share fair values of stock options granted under the 2009 Plan and rights granted under the ESPP have been estimated with the following assumptions.



	Employee Stock Options						Employee Stock Purchase Rights
	2014		2013		2012		2014		2013		2012
Expected dividend yield:	—	%	—	%	—	%	—	%	—	%	—	%
Risk-free interest rate:	1.4	%	0.8	%	0.9	%	5.4	%	—	%	0.2	%
Volatility:	80	%	63	%	63	%	53	%	—	%	68	%
Expected term (in years):	4.6		6		6		0.4		0.0		1.3

Summary of Stock Option Activity

A summary of stock option activity for the years ended December 31, 2014 and 2013 is presented below (dollars and shares in thousands, except per share data):



	Stock Options Outstanding		Weighted Average Exercise Price Per Option		Weighted Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value
Options outstanding December 31, 2012	4,282		$	10.25
Granted	425		2.10
Exercised	(38	)	2.68
Cancelled	(736	)	10.21
Options outstanding December 31, 2013	3,933		$	9.45
Granted	1,658		2.92
Exercised	(89	)	2.17
Cancelled	(2,437	)	10.52
Balance December 31, 2014	3,065		$	5.27	4.92 years	$	1,022
Options Exercisable, December 31, 2014	1,769		$	6.80	4.99 years	$	449

Summary of Restricted Stock Unit Activity

A summary of restricted stock unit activity for the year ended December 31, 2014 is presented below (shares in thousands):



	Shares
Non-vested at December 31, 2013	1,108
Granted	2,659
Vested	(1,207	)
Forfeited	(931	)
Non-vested at December 31, 2014	1,629

Securities Purchase Agreement (Tables)

12 Months Ended

Dec. 31, 2014

Equity [Abstract]

Summary of Change to Fair Value of Warrant

The following table shows the change to the fair value of the Warrant during the twelve months ended December 31, 2014 (in thousands):



Warrant Derivative Liability
Balance at September 8, 2014 (Transaction Date)	$	4,939
Change in fair value	3,280
Balance at November 17, 2014 (Shareholder Approval Date)	8,219
Reclassification to additional paid-in-capital	(8,219		)
Ending balance at December 31, 2014	$	—

- Definition

Tabular disclosure of warrants or rights issued. Warrants and rights outstanding are derivative securities that give the holder the right to purchase securities (usually equity) from the issuer at a specific price within a certain time frame. Warrants are often included in a new debt issue to entice investors by a higher return potential. The main difference between warrants and call options is that warrants are issued and guaranteed by the company, whereas options are exchange instruments and are not issued by the company. Also, the lifetime of a warrant is often measured in years, while the lifetime of a typical option is measured in months. Disclose the title of issue of securities called for by warrants and rights outstanding, the aggregate amount of securities called for by warrants and rights outstanding, the date from which the warrants or rights are exercisable, and the price at which the warrant or right is exercisable.

+ References + Details

Income Taxes (Tables)

12 Months Ended

Dec. 31, 2014

Income Tax Disclosure [Abstract]

Summary of Income Taxes

Summary of Income (Loss) before Taxes

Income (loss) before taxes for the years ended December 31, 2014, 2013 and 2012 is comprised of the following (in thousands):



	Year Ended December 31,
	2014			2013			2012
Domestic	$	(39,513	)	$	(44,142	)	$	(88,945	)
Foreign	408			812			290
Loss before taxes	$	(39,105	)	$	(43,330	)	$	(88,655	)

Summary of Provision (Benefit) for Income Taxes

The provision (benefit) for income taxes for the years ended December 31, 2014, 2013 and 2012 is comprised of the following (in thousands):



	Year Ended December 31,
	2014		2013			2012
Current:
Federal	$	—	$	(248	)	$	—
State	21		33			29
Foreign	16		(229		)	74
Total Current	37		(444		)	103
Deferred:
Federal	—		53			14
State	—		—			—
Foreign	87		474			494
Total Deferred	87		527			508
Provision or income taxes	$	124	$	83		$	611

Summary of Net Deferred Tax Assets

The Company’s net deferred tax assets consist of the following (in thousands):



	December 31,
	2014			2013
Deferred tax assets:
Accrued expenses	$	4,566		$	11,292
Inventory obsolescence provision	2,352			3,539
Depreciation and amortization	4,137			4,136
Deferred rent	555			559
Net operating loss and tax credit carryforwards	76,346			55,010
Stock-based compensation	1,910			4,518
Unrecognized tax benefits	1,296			1,190
Deferred tax assets	91,162			80,244
Deferred tax liabilities:
Amortization of acquired intangibles	(388		)	(699		)
Net deferred tax assets	90,774			79,545
Valuation allowance	(90,774		)	(79,458		)
Net deferred tax assets	$	—		$	87

Summary of Provision (Benefit) for Income Taxes Reconciles to Amount Computed by Applying Statutory Federal Income Tax Rate



	Year Ended December 31,
	2014			2013			2012
Federal tax benefit, at statutory rate	$	(13,447	)	$	(14,732	)	$	(30,142	)
State benefit, net of federal benefit	(1,054		)	(922		)	(757		)
Change in valuation allowance	11,316			15,577			27,486
Change in fair value of warrant	1,203			—			—
Beneficial conversion feature	163			—			—
Research and development credits	3			(1,084		)	(856		)
Share-based compensation	2,402			2,433			1,616
Uncertain tax positions	(62		)	(307		)	(46		)
Goodwill impairment	—			—			3,700
Change in state apportionment	(347		)	(767		)	—
Other	(53		)	(115		)	(390		)
	$	124		$	83		$	611

Reconciliation of Beginning and Ending Amounts of Unrecognized Tax Benefits

A reconciliation of the beginning and ending amounts of unrecognized tax benefits is as follows (in thousands):




	Amount
Unrecognized tax benefits balance at December 31, 2012	$	33,220
Increases related to current and prior year tax positions	2,653
Settlements and lapses in statutes of limitations	(373		)
Unrecognized tax benefits balance at December 31, 2013	35,500
Increases related to current and prior year tax positions	204
Settlements and lapses in statutes of limitations	(61		)
Unrecognized tax benefits balance at December 31, 2014	$	35,643

Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2014

Commitments and Contingencies Disclosure [Abstract]

Summary of Minimum Future Lease Payments under Non-Cancelable Operating Leases

The minimum future lease payments under non-cancellable operating leases as of December 31, 2014 are as follows (in thousands):



For the Period Ending December 31,	Amount
2015	$	2,744
2016	2,749
2017	537
2018	436
2019	433
Thereafter	221
Total minimum lease payments	$	7,120

Segment Information and Concentrations of Risk (Tables)

12 Months Ended

Dec. 31, 2014

Segment Reporting [Abstract]

Schedule of Net Revenues, Operating Income (Loss) and Identifiable Assets of Segments

The table below presents net revenues from external customers, operating loss and identifiable assets for our reportable segments (in thousands):



	Year Ended December 31,
	2014			2013			2012
Net revenues by reportable segment:
Mobile Computing Products	$	145,500		$	297,499		$	312,508
M2M Products and Solutions	39,745			37,554			31,780
Total	$	185,245		$	335,053		$	344,288
Operating loss:
Mobile Computing Products	$	(23,339	)	$	(27,939	)	$	(22,924	)
M2M Products and Solutions	(12,234		)	(15,282		)	(65,819		)
Total	$	(35,573	)	$	(43,221	)	$	(88,743	)



	Year Ended December 31,
	2014		2013
Identifiable assets by reportable segment:
Mobile Computing Products	$	79,368	$	96,516
M2M Products and Solutions	15,652		14,949
Total	$	95,020	$	111,465

Schedule of Geographic Concentration of Assets



	Year Ended December 31,
	2014		2013
United States	$	91,843	$	108,932
Canada	587		808
Europe, Latin America and Asia	2,590		1,725
	$	95,020	$	111,465

Schedule of Geographic Concentration of Net Revenues

The following table details the Company’s concentration of net revenues by geographic region based on shipping destination:



	Year Ended December 31,
	2014		2013		2012
United States and Canada	91.2	%	95.6	%	93.1	%
Latin America	1.0		0.8		2.4
Europe, Middle East, Africa and other	6.6		3.4		4.1
Asia and Australia	1.2		0.2		0.4
	100.0	%	100.0	%	100.0	%

Restructuring (Tables)

12 Months Ended

Dec. 31, 2014

Restructuring and Related Activities [Abstract]

Summary of Restructuring Liability

The following table sets forth activity in the restructuring liability for the twelve months ended December 31, 2014 (in thousands):



	2013 Initiatives						2014 Initiatives
	Employee Severance Costs			Facility Exit Related Costs			Employment Contract Costs			Share-based Compensation Costs			Total
Balance at December 31, 2013	$	—		$	881		$	—		$	—		$	881
Accruals	1,713			1,170			3,579			1,298			7,760
Payments	(1,713		)	(1,819		)	(1,828		)	—			(5,360		)
Share-based compensation	—			—			—			(1,298		)	(1,298		)
Balance at December 31, 2014	$	—		$	232		$	1,751		$	—		$	1,983

Quarterly Financial Information (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2014

Quarterly Financial Information Disclosure [Abstract]

Summary of Unaudited Quarterly Results of Operations

16. Quarterly Financial Information (Unaudited)

The following is a summary of unaudited quarterly results of operations for the years ended December 31, 2014 and 2013.



	Quarter
	First			Second			Third			Fourth
	(in thousands, except per share amounts)
2014
Net revenues	$	48,284		$	37,270		$	44,330		$	55,361
Gross profit	10,068			3,987			10,486			12,506
Net loss attributable to common shareholders	(8,981		)	(17,415		)	(8,832		)	(4,446		)
Basic net loss per common share	(0.26		)	(0.51		)	(0.23		)	(0.10		)
Diluted net loss per common share	(0.26		)	(0.51		)	(0.23		)	(0.13		)
2013
Net revenues	$	85,921		$	91,124		$	92,673		$	65,335
Gross profit	16,848			19,024			20,383			12,039
Net loss attributable to common shareholders	(9,122		)	(7,892		)	(5,093		)	(21,306		)
Basic and diluted net loss per common share	(0.27		)	(0.23		)	(0.15		)	(0.63		)

Nature of Business and Significant Accounting Policies - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Nature Of Business And Significant Accounting Policies [Line Items]
Net Income (Loss) Attributable to Parent Before Beneficial Conversion									$ (39,229)	$ (43,413)	$ (89,266)
Net loss	$ 4,446	$ 8,832	$ 17,415	$ 8,981	$ 21,306	$ 5,093	$ 7,892	$ 9,122	39,674	$ 43,413	$ 89,266
Cash, cash equivalents and short-term marketable securities	17,900								17,900
Working capital	$ 29,400								$ 29,400
Maturity period of cash and cash equivalents									3 months
Maturity period of marketable securities									three months
Recognized income tax position (percent)									50.00%
Developed technologies
Nature Of Business And Significant Accounting Policies [Line Items]
Period of amortization									1 year
Trade name
Nature Of Business And Significant Accounting Policies [Line Items]
Period of amortization									3 years
Minimum
Nature Of Business And Significant Accounting Policies [Line Items]
Property and equipment useful lives									18 months
Period of warranty									1 year
Maximum
Nature Of Business And Significant Accounting Policies [Line Items]
Property and equipment useful lives									5 years
Period of warranty									3 years

Fair Value Measurement of Assets and Liabilities - Summary of Company's Financial Instruments, Fair Value on a Recurring Basis (Detail) - USD ($) $ in Thousands	Dec. 31, 2014	Dec. 31, 2013
Fair Value, Measurements, Recurring
Cash equivalents
Total cash equivalents	$ 2,114	$ 487
Available-for-sale:
Total short-term marketable securities		19,178
Total long-term marketable securities		3,443
Total financial assets		23,108
Fair Value, Measurements, Recurring \| Government agency securities
Available-for-sale:
Total short-term marketable securities		2,351
Fair Value, Measurements, Recurring \| Municipal bonds
Available-for-sale:
Total short-term marketable securities		2,829
Fair Value, Measurements, Recurring \| Certificates of deposit
Available-for-sale:
Total short-term marketable securities		3,360
Total long-term marketable securities		1,300
Fair Value, Measurements, Recurring \| Corporate debentures / bonds
Available-for-sale:
Total short-term marketable securities		10,638
Total long-term marketable securities		2,143
Fair Value, Measurements, Recurring \| Money market funds
Cash equivalents
Total cash equivalents	1,134
Fair Value, Measurements, Recurring \| US Treasury securities
Cash equivalents
Total cash equivalents		487
Fair Value, Measurements, Recurring \| Certificates of deposit
Cash equivalents
Total cash equivalents	980
Level 1
Cash equivalents
Total cash equivalents	1,134	0
Available-for-sale:
Total short-term marketable securities		0
Total long-term marketable securities		0
Total financial assets		0
Level 1 \| Government agency securities
Available-for-sale:
Total short-term marketable securities		0
Level 1 \| Municipal bonds
Available-for-sale:
Total short-term marketable securities		0
Level 1 \| Certificates of deposit
Available-for-sale:
Total short-term marketable securities		0
Total long-term marketable securities		0
Level 1 \| Corporate debentures / bonds
Available-for-sale:
Total short-term marketable securities		0
Total long-term marketable securities		0
Level 1 \| Money market funds
Cash equivalents
Total cash equivalents	1,134
Level 1 \| US Treasury securities
Cash equivalents
Total cash equivalents		0
Level 1 \| Certificates of deposit
Cash equivalents
Total cash equivalents	0
Level 2
Cash equivalents
Total cash equivalents	980	487
Available-for-sale:
Total short-term marketable securities		19,178
Total long-term marketable securities		3,443
Total financial assets		23,108
Level 2 \| Government agency securities
Available-for-sale:
Total short-term marketable securities		2,351
Level 2 \| Municipal bonds
Available-for-sale:
Total short-term marketable securities		2,829
Level 2 \| Certificates of deposit
Available-for-sale:
Total short-term marketable securities		3,360
Total long-term marketable securities		1,300
Level 2 \| Corporate debentures / bonds
Available-for-sale:
Total short-term marketable securities		10,638
Total long-term marketable securities		2,143
Level 2 \| Money market funds
Cash equivalents
Total cash equivalents	0
Level 2 \| US Treasury securities
Cash equivalents
Total cash equivalents		$ 487
Level 2 \| Certificates of deposit
Cash equivalents
Total cash equivalents	$ 980

Fair Value Measurement of Assets and Liabilities - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency exchange forward contracts outstanding	$ 0	$ 0
Foreign currency losses on foreign currency denominated transactions	$ 176,000	$ 183,000	$ 51,000

Fair Value Measurement of Assets and Liabilities - Other Financial Instruments (Details) $ in Thousands	Dec. 31, 2014 USD ($)
Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term Debt	$ 5,158
Reported Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term Debt	5,158
Revolving Credit Facility \| Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term Debt	5,158
Revolving Credit Facility \| Reported Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term Debt	$ 5,158

Financial Statement Details - Summary of Marketable Securities Available-for-Sale (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost		$ 22,616
Gross Unrealized Gains		5
Gross Unrealized Losses		0
Estimated Fair Value		22,621
Short-term marketable securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost		19,173
Gross Unrealized Gains		5
Gross Unrealized Losses		0
Estimated Fair Value		19,178
Long-term marketable securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost		3,443
Gross Unrealized Gains		0
Gross Unrealized Losses		0
Estimated Fair Value		$ 3,443
Government agency securities \| Short-term marketable securities
Schedule of Available-for-sale Securities [Line Items]
Maturity in Years		1 or less
Amortized Cost		$ 2,350
Gross Unrealized Gains		1
Gross Unrealized Losses		0
Estimated Fair Value		$ 2,351
Municipal bonds \| Short-term marketable securities
Schedule of Available-for-sale Securities [Line Items]
Maturity in Years		1 or less
Amortized Cost		$ 2,828
Gross Unrealized Gains		1
Gross Unrealized Losses		0
Estimated Fair Value		$ 2,829
Certificates of deposit \| Short-term marketable securities
Schedule of Available-for-sale Securities [Line Items]
Maturity in Years		1 or less
Amortized Cost		$ 3,360
Gross Unrealized Gains		0
Gross Unrealized Losses		0
Estimated Fair Value		$ 3,360
Certificates of deposit \| Long-term marketable securities
Schedule of Available-for-sale Securities [Line Items]
Maturity in Years		1 to 2
Amortized Cost		$ 1,300
Gross Unrealized Gains		0
Gross Unrealized Losses		0
Estimated Fair Value		$ 1,300
Corporate debentures / bonds \| Short-term marketable securities
Schedule of Available-for-sale Securities [Line Items]
Maturity in Years		1 or less
Amortized Cost		$ 10,635
Gross Unrealized Gains		3
Gross Unrealized Losses		0
Estimated Fair Value		$ 10,638
Corporate debentures / bonds \| Long-term marketable securities
Schedule of Available-for-sale Securities [Line Items]
Maturity in Years		1 to 2
Amortized Cost		$ 2,143
Gross Unrealized Gains		0
Gross Unrealized Losses		0
Estimated Fair Value		$ 2,143
Minimum \| Certificates of deposit \| Long-term marketable securities
Schedule of Available-for-sale Securities [Line Items]
Long Term Investments Maturity Period	1 year	1 year
Minimum \| Corporate debentures / bonds \| Long-term marketable securities
Schedule of Available-for-sale Securities [Line Items]
Long Term Investments Maturity Period	1 year	1 year
Maximum \| Certificates of deposit \| Long-term marketable securities
Schedule of Available-for-sale Securities [Line Items]
Long Term Investments Maturity Period	2 years	2 years
Maximum \| Corporate debentures / bonds \| Long-term marketable securities
Schedule of Available-for-sale Securities [Line Items]
Long Term Investments Maturity Period	2 years	2 years

Financial Statement Details - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Net unrealized gains (losses)	$ 0	$ 5,000
Property and equipment	0	70,000	$ 100,000
Depreciation and amortization expense	$ 6,300,000	$ 7,900,000	$ 9,400,000

Financial Statement Details - Summary of Inventories (Detail) - USD ($) $ in Thousands	Dec. 31, 2014	Dec. 31, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Finished goods	$ 33,045	$ 20,870
Raw materials and components	4,758	6,923
Total inventory	$ 37,803	$ 27,793

Financial Statement Details - Summary of Property and Equipment (Detail) - USD ($) $ in Thousands	Dec. 31, 2014	Dec. 31, 2013
Property, Plant and Equipment [Line Items]
Property and equipment, Gross	$ 73,728	$ 72,235
Less—accumulated depreciation and amortization	(68,449)	(62,334)
Property and equipment, Net	5,279	9,901
Test equipment
Property, Plant and Equipment [Line Items]
Property and equipment, Gross	53,019	52,108
Computer equipment and purchased software
Property, Plant and Equipment [Line Items]
Property and equipment, Gross	11,247	10,814
Product tooling
Property, Plant and Equipment [Line Items]
Property and equipment, Gross	3,535	3,204
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and equipment, Gross	1,824	2,015
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, Gross	$ 4,103	$ 4,094

Financial Statement Details - Summary of Accrued Expenses (Detail) - USD ($) $ in Thousands	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Royalties	$ 4,035	$ 4,243
Payroll and related expenses	8,038	4,828
Product warranty	1,196	2,244	$ 2,329
Market development funds and price protection	2,502	3,059
Professional fees	780	1,040
Deferred revenue	962	2,999
Restructuring	1,886	610
Other	4,445	4,248
Accrued expenses, Total	$ 23,844	$ 23,271

Financial Statement Details - Summary of Accrued Warranty Obligations (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Movement in Standard Product Warranty Accrual [Roll Forward]
Warranty liability at beginning of period	$ 2,244	$ 2,329
Additions charged to operations	1,345	5,055
Deductions from liability	(2,393)	(5,140)
Warranty liability at end of period	$ 1,196	$ 2,244

Intangible Assets - Schedule of Amortizable Purchased Intangible Assets from Acquisition (Detail) - USD ($) $ in Thousands	Dec. 31, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Gross	$ 42,520	$ 42,520
Accumulated Amortization	(11,647)	(10,752)
Accumulated Impairment	(29,749)	(29,749)
Net	1,124	2,019
Developed technologies
Finite-Lived Intangible Assets [Line Items]
Gross	26,000	26,000
Accumulated Amortization	(6,453)	(6,120)
Accumulated Impairment	(19,547)	(19,547)
Net	0	333
Trade name
Finite-Lived Intangible Assets [Line Items]
Gross	12,800	12,800
Accumulated Amortization	(3,183)	(2,665)
Accumulated Impairment	(8,582)	(8,582)
Net	1,035	1,553
Other
Finite-Lived Intangible Assets [Line Items]
Gross	3,720	3,720
Accumulated Amortization	(2,011)	(1,967)
Accumulated Impairment	(1,620)	(1,620)
Net	$ 89	$ 133

Intangible Assets - Summary of Amortization Expenses of Purchased Intangible Assets (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Finite-Lived Intangible Assets [Line Items]
Amortization of purchased intangible assets	$ 562	$ 562	$ 1,074
Cost of net revenues
Finite-Lived Intangible Assets [Line Items]
Amortization of purchased intangible assets	333	334
General and administrative expenses
Finite-Lived Intangible Assets [Line Items]
Amortization of purchased intangible assets	562	562
Total amortization expense
Finite-Lived Intangible Assets [Line Items]
Amortization of purchased intangible assets	$ 895	$ 896

Intangible Assets - Schedule of Amortization Expense of Purchased Intangible Assets Expected to be Recognized (Detail) - USD ($) $ in Thousands	Dec. 31, 2014	Dec. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]
2015	$ 562
2016	562
Net	$ 1,124	$ 2,019

Intangible Assets - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Finite-Lived Intangible Assets [Line Items]
Purchased intangible assets net	$ 1,493,000	$ 2,131,000
Intangible assets accumulated amortization	14,050,000	12,983,000
Impairment loss	0	0	$ 49,521,000
Amortization expense	$ 562,000	562,000	1,074,000
Weighted average remaining useful life of long-lived intangible assets	2 years
Acquired software licenses
Finite-Lived Intangible Assets [Line Items]
Purchased intangible assets net	$ 369,000	112,000
Intangible assets accumulated amortization	2,400,000	2,200,000
Amortization expense	173,000	$ 113,000	196,000
Intangible assets
Finite-Lived Intangible Assets [Line Items]
Impairment loss	$ 0		$ 49,500,000

Revolving Credit Facility - Narrative (Details) - USD ($) $ in Millions		12 Months Ended
	Oct. 31, 2014	Dec. 31, 2014
Revolving Credit Facility
Debt Instrument [Line Items]
Term of debt instrument	5 years
Maximum amount of credit facility	$ 25.0	$ 25.0
Outstanding borrowings under the credit facility		(5.2)
Available borrowings		$ 12.1
Revolving Credit Facility \| Minimum
Debt Instrument [Line Items]
Margin on LIBOR rate		2.50%
Revolving Credit Facility \| Maximum
Debt Instrument [Line Items]
Margin on LIBOR rate		3.00%
Revolving Credit Facility \| Weighted Average
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Effective Percentage		2.80%
Letter of Credit
Debt Instrument [Line Items]
Maximum amount of credit facility		$ 3.0

Earnings Per Share - Narrative (Detail) - shares	12 Months Ended
Earnings Per Share - Narrative (Detail) - shares	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Earnings Per Share [Abstract]
Weighted-average options RSUs, and ESPP shares outstanding (shares)	8,130,000	4,424,000	5,793,000

Earnings Per Share - Earnings Per Basic and Diluted Share Table (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Numerator
Net loss	$ (4,446)	$ (8,832)	$ (17,415)	$ (8,981)	$ (21,306)	$ (5,093)	$ (7,892)	$ (9,122)	$ (39,674)	$ (43,413)	$ (89,266)
Denominator
Weighted-average common shares outstanding (in shares)									37,959	33,948	32,852
Basic and diluted net loss per share (dollars per share)					$ (0.63)	$ (0.15)	$ (0.23)	$ (0.27)	$ (1.05)	$ (1.28)	$ (2.72)

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

+ Details

Stockholders' Equity - Additional Information (Detail) - $ / shares	Dec. 31, 2014	Dec. 31, 2013
Equity [Abstract]
Preferred stock, shares authorized	2,000,000	2,000,000
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares outstanding	0	0
Preferred stock, shares issued	0

Stockholders' Equity - Summary of Common Shares Reserved for Future Issuance (Detail) - shares shares in Thousands	Dec. 31, 2014	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total shares of common stock reserved for issuance	14,660	10,209
Stock options outstanding under the 2009 Omnibus Incentive Compensation Plan and previous plans
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total shares of common stock reserved for issuance	3,065	3,933
Restricted stock units outstanding
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total shares of common stock reserved for issuance	1,629	1,108
Future grants of awards under the 2009 Omnibus Incentive Compensation Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total shares of common stock reserved for issuance	4,463	3,668
Shares available under the Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total shares of common stock reserved for issuance	1,385	1,500
Common stock warrants outstanding
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total shares of common stock reserved for issuance	4,118	0

Stock Incentive and Employee Stock Purchase Plans - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Aug. 16, 2014	Nov. 15, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total fair value of option awards recognized as expense	$ 3,588	$ 3,443	$ 7,500
Total intrinsic value of options exercised	$ 449
Number of shares issued under the ESPP	114,791	0	1,086,837
Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total fair value of option awards recognized as expense	$ 1,300
Stock options outstanding under the 2009 Omnibus Incentive Compensation Plan and previous plans
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares of common stock issued upon the exercise of stock options	10,000,000
Total fair value of option awards recognized as expense	$ 776	$ 800	$ 1,700
Duration of the options granted	10 years
Rate of options exercisable after one year	33.30%
Total intrinsic value of options exercised	$ 96	$ 44	$ 0
Total unrecognized share-based compensation cost	$ 1,777
Expected recognition period	2 years 8 months 12 days
Weighted average fair value of option awards granted per share	$ 1.48	$ 1.20	$ 1.97
Stock options outstanding under the 2009 Omnibus Incentive Compensation Plan and previous plans \| New Hire
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted vesting period	24 months
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total fair value of option awards recognized as expense	$ 2,900	$ 2,600	$ 3,400
Expected recognition period	2 years 8 months 12 days
Number of RSUs awarded to employees	2,658,956	447,703	1,015,638
RSUs (restricted stock units) vesting rights percentage	33.33%
Aggregate fair value of awards	$ 5,743	$ 900	$ 3,400
Unrecognized compensation expense related to non-vested RSUs	$ 3,000
Restricted stock units \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of RSUs price per unit at fair value	$ 1.60	$ 1.74	$ 1.28
Restricted stock units \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of RSUs price per unit at fair value	$ 3.55	$ 4.17	$ 3.58
Shares available under the Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense related to non-vested RSUs					$ 1,000
Percentage of lower limit value of common stock	85.00%
Maximum limit of payroll deductions (percent)	10.00%
Number of shares issue that the ESPP authorizes for purchase by eligible employees				1,500,132
Amount received in cash through employee withholdings	$ 192	$ 0	$ 1,600
Total fair value of awards recognized as expenses	$ 101	$ 0	$ 1,400

Stock Incentive and Employee Stock Purchase Plans - Summary of Share-Based Compensation Expense (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Amounts for share-based compensation awards	$ 3,588	$ 3,443	$ 7,500
Cost of revenues
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Amounts for share-based compensation awards	5	84	747
Research and development
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Amounts for share-based compensation awards	654	1,114	3,042
Sales and marketing
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Amounts for share-based compensation awards	247	669	1,403
General and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Amounts for share-based compensation awards	$ 2,682	$ 1,576	$ 2,308

Stock Incentive and Employee Stock Purchase Plans - Summary of per Share Fair Values of Stock Options Granted under 2009 Plan and Rights Granted under ESPP (Detail)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Employoee Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected dividend yield rate	0.00%	0.00%	0.00%
Risk-free interest rate:	1.40%	0.80%	0.90%
Volatility rate	80.00%	63.00%	63.00%
Expected term (in years)	4 years 7 months 6 days	6 years	6 years
Employee Stock Purchase Rights
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected dividend yield rate	0.00%	0.00%	0.00%
Risk-free interest rate:	5.40%	0.00%	0.20%
Volatility rate	53.00%	0.00%	68.00%
Expected term (in years)	4 months 24 days	0 years	1 year 3 months 18 days

Stock Incentive and Employee Stock Purchase Plans - Summary of Stock Option Activity (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Stock Options Outstanding
Options outstanding December 31, 2013	3,933	4,282
Granted	1,658	425
Exercised	(89)	(38)
Cancelled	(2,437)	(736)
Balance December 31, 2014	3,065	3,933
Options Exercisable, December 31, 2014	1,769
Weighted Average Exercise Price Per Option
Options outstanding December 31, 2013	$ 9.45	$ 10.25
Granted	2.92	2.10
Exercised	2.17	2.68
Cancelled	10.52	10.21
Balance December 31, 2014	5.27	$ 9.45
Options Exercisable, December 31, 2014	$ 6.80
Weighted Average Remaining Contractual Term (Years), Options outstanding	4 years 11 months 1 day
Weighted Average Remaining Contractual Term (Years), Options Exercisable	4 years 11 months 27 days
Aggregate Intrinsic Value, Options outstanding	$ 1,022
Aggregate Intrinsic Value, Options Exercisable	$ 449

Stock Incentive and Employee Stock Purchase Plans - Summary of Restricted Stock Unit Activity (Detail) - Restricted Stock shares in Thousands	12 Months Ended
	Dec. 31, 2014 shares
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]
Non-vested at December 31, 2013	1,108
Granted	2,659
Vested	(1,207)
Forfeited	(931)
Non-vested at December 31, 2014	1,629

Securities Purchase Agreement - Additional Information (Detail) $ / shares in Units, $ in Thousands			1 Months Ended	12 Months Ended
	Nov. 17, 2014 USD ($) shares	Sep. 08, 2014 USD ($) $ / shares $ / Warrant shares	Dec. 31, 2014 USD ($) $ / shares shares	Dec. 31, 2014 USD ($) $ / shares shares	Dec. 31, 2013 USD ($) $ / shares shares	Dec. 31, 2012 USD ($)	Nov. 16, 2014 shares
Changes In Equity And Comprehensive Income Line Items [Line Items]
Common stock shares issued at par value (per share) \| $ / shares			$ 0.001	$ 0.001	$ 0.001
Warrants to purchase common stock sold (shares)		4,117,647
Exercise price per share \| $ / Warrant		2.26
Proceeds from the issuances of Series C preferred and common stock, net of issuance costs \| $				$ 14,163	$ 0	$ 0
Common stock, shares authorized	100,000,000		100,000,000	100,000,000	100,000,000		50,000,000
Reclassification of warrant liability to equity \| $	$ 8,219		$ 8,219	$ 8,219
Expense on fair value warrants \| $				$ 3,280	$ 0	$ 0
Common stock shares reserved for issuance			14,660,000	14,660,000	10,209,000
2009 Omnibus Incentive Compensation Plan
Changes In Equity And Comprehensive Income Line Items [Line Items]
Unreserved shares previously approved for issuance		1,651,455
2000 Stock Compensation Plan
Changes In Equity And Comprehensive Income Line Items [Line Items]
Unreserved shares previously approved for issuance		1,300,000
Series C Preferred Stock
Changes In Equity And Comprehensive Income Line Items [Line Items]
Number of shares sold		87,196
Convertible preferred stock par value per share \| $ / shares		$ 0.001
Number of shares sold, Per share price \| $ / shares		$ 17.50
Proceeds from the issuances of Series C preferred and common stock, net of issuance costs \| $		$ 14,400
Convertible Preferred Stock, Shares Issued upon Conversion		10
Beneficial conversion feature \| $		$ 445
Series C Convertible Preferred Stock
Changes In Equity And Comprehensive Income Line Items [Line Items]
Common stock shares reserved for issuance		871,960
Scenario, Plan
Changes In Equity And Comprehensive Income Line Items [Line Items]
Common stock, shares authorized		100,000,000
Common Stock
Changes In Equity And Comprehensive Income Line Items [Line Items]
Number of shares sold		7,363,334		7,363,000
Common stock shares issued at par value (per share) \| $ / shares		$ 0.001
Number of shares sold, Per share price \| $ / shares		$ 1.75
Common stock warrants outstanding
Changes In Equity And Comprehensive Income Line Items [Line Items]
Warrants to purchase common stock sold (shares)		4,117,647
Exercise price per share \| $ / Warrant		2.26

Securities Purchase Agreement - Summary of Change to Fair Value of Warrant (Detail) - USD ($) $ in Thousands		1 Months Ended	4 Months Ended	12 Months Ended
	Nov. 17, 2014	Dec. 31, 2014	Dec. 31, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Change in fair value of warrant liability and fair value of beneficial conversion feature on convertible Series C preferred shares				$ 3,280	$ 0	$ 0
Reclassification to additional paid-in-capital	$ (8,219)	$ (8,219)		(8,219)
Level 3
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Change in fair value of warrant liability and fair value of beneficial conversion feature on convertible Series C preferred shares			$ 3,280
Ending balance at December 31, 2014	$ 8,219	$ 0	$ 0	$ 0

Income Taxes - Summary of Income (Loss) before Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Domestic	$ (39,513)	$ (44,142)	$ (88,945)
Foreign	408	812	290
Loss before income taxes	$ (39,105)	$ (43,330)	$ (88,655)

Income Taxes - Summary of Provision (Benefit) for Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Current:
Federal	$ 0	$ (248)	$ 0
State	21	33	29
Foreign	16	(229)	74
Total Current	37	(444)	103
Deferred:
Federal	0	53	14
State	0	0	0
Foreign	87	474	494
Total Deferred	87	527	508
Provision or income taxes	$ 124	$ 83	$ 611

Income Taxes - Summary of Net Deferred Tax Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2014	Dec. 31, 2013
Deferred tax assets:
Accrued expenses	$ 4,566	$ 11,292
Inventory obsolescence provision	2,352	3,539
Depreciation and amortization	4,137	4,136
Deferred rent	555	559
Net operating loss and tax credit carryforwards	76,346	55,010
Stock-based compensation	1,910	4,518
Unrecognized tax benefits	1,296	1,190
Deferred tax assets	91,162	80,244
Deferred tax liabilities:
Amortization of acquired intangibles	(388)	(699)
Net deferred tax assets	90,774	79,545
Valuation allowance	(90,774)	(79,458)
Net deferred tax assets	$ 0	$ 87

Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Operating Loss Carryforwards [Line Items]
Valuation allowances related to U.S. based deferred taxes		$ 11,300	$ 15,600
Valuation allowance	$ 90,774	$ 90,774	$ 79,458
Statutory federal income tax rate		34.00%	34.00%	34.00%
Internal revenue code related to annual use of operating loss carry forwards		annual use of the Company’s net operating loss and research and development credit carryforwards may be limited in the event a cumulative change in ownership of more than 50% occurs within a three-year period
Internal revenue code, cumulative change in ownership (percent)		50.00%
Uncertain income tax position unrecognized		less than a 50% likelihood
Settlements and lapses in statutes of limitations		$ 61	$ 71
Associated interest due to expiration of the applicable statutes of limitations for certain tax years		0	236
Total liability for unrecognized tax benefits included other long-term liabilities		0	61
Interest and penalties related to unrecognized tax benefits in the provision for income taxes		0
Uncertain tax liability	61
Domestic Country
Operating Loss Carryforwards [Line Items]
Valuation allowance	86,000	86,000	74,700
Net operating loss carryforwards	174,300	$ 174,300
Net operating loss expiration dates		2029 through 2034
Research and development tax credit carryforwards	4,300	$ 4,300
Tax credits expiration dates		2027 through 2034
Foreign Country
Operating Loss Carryforwards [Line Items]
Valuation allowance	4,800	$ 4,800	$ 4,700
State and Local Jurisdiction
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	67,100	$ 67,100
Net operating loss expiration dates		2017 through 2034
Research and development tax credit carryforwards	$ 5,400	$ 5,400

Income Taxes - Summary of Provision (Benefit) for Income Taxes Reconciles to Amount Computed by Applying Statutory Federal Income Tax Rate (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Federal tax benefit, at statutory rate	$ (13,447)	$ (14,732)	$ (30,142)
State benefit, net of federal benefit	(1,054)	(922)	(757)
Change in valuation allowance	11,316	15,577	27,486
Change in fair value of warrant	1,203	0	0
Beneficial conversion feature	163	0	0
Research and development credits	3	(1,084)	(856)
Share-based compensation	2,402	2,433	1,616
Uncertain tax positions	(62)	(307)	(46)
Goodwill impairment	0	0	3,700
Change in state apportionment	(347)	(767)	0
Other	(53)	(115)	(390)
Provision or income taxes	$ 124	$ 83	$ 611

Income Taxes - Reconciliation of Beginning and Ending Amounts of Unrecognized Tax Benefits (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized Tax Benefits, Beginning Balance	$ 35,500	$ 33,220
Increases related to current and prior year tax positions	204	2,653
Settlements and lapses in statutes of limitations	(61)	(373)
Unrecognized Tax Benefits, Ending Balance	$ 35,643	$ 35,500

Commitments and Contingencies - Additional Information (Detail) - USD ($)					9 Months Ended	12 Months Ended
	Nov. 17, 2014	Oct. 31, 2014	Jul. 08, 2014	Jun. 23, 2014	Mar. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Loss Contingencies [Line Items]
Rental expense under operating leases						$ 3,000,000	$ 4,100,000	$ 4,500,000
Purchase commitments						$ 55,000,000
Period of time to achieve earnings and cash building targets						6 months
Accrued bonus liability						$ 5,500,000
Loss Contingency, Damages Paid, Value				$ 6,000,000
Consideration For Litigation Settlement Paid By Companys Insurers			$ 1,700,000	1,700,000
Legal Settlements Promissory Notes Issued Amount			5,000,000	5,000,000
Amount for Share Price Fluctuation Related to Litigation Settlement	$ 789,600
Loss Contingency Damages Paid Net Of Portion Paid By Companys Insurers			4,300,000
Revolving Credit Facility
Loss Contingencies [Line Items]
Secured note maturity period		5 years
Company's unused borrowing capacity under credit facility		$ 25,000,000				25,000,000
Line of Credit Facility, Amount Outstanding						5,200,000
Available borrowings						12,100,000
Letter of Credit
Loss Contingencies [Line Items]
Company's unused borrowing capacity under credit facility						$ 3,000,000
Unrestricted Stock
Loss Contingencies [Line Items]
Legal Settlements Shares Issued Value			$ 5,000,000	$ 5,000,000
Common Stock Distribution (shares)			2,407,318
Secured Promissory Note
Loss Contingencies [Line Items]
Secured note maturity period				30 months
Secured note interest rate percentage				5.00%
Scenario, Forecast
Loss Contingencies [Line Items]
Total estimated expense					$ 11,000,000

Commitments and Contingencies - Summary of Minimum Future Lease Payments under Non-Cancelable Operating Leases (Detail) $ in Thousands	Dec. 31, 2014 USD ($)
Commitments and Contingencies Disclosure [Abstract]
2015	$ 2,744
2016	2,749
2017	537
2018	436
2019	433
Thereafter	221
Total minimum lease payments	$ 7,120

Segment Information and Concentrations of Risk - Schedule of Net Revenues, Operating Income (Loss) and Identifiable Assets of Segments (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Net revenues by reportable segment:
Net revenues	$ 55,361	$ 44,330	$ 37,270	$ 48,284	$ 65,335	$ 92,673	$ 91,124	$ 85,921	$ 185,245	$ 335,053	$ 344,288
Operating income (loss):
Operating loss:									(35,573)	(43,221)	(88,743)
Identifiable assets by reportable segment:
Identifiable assets by reportable segment:	95,020				111,465				95,020	111,465
Mobile Computing Products
Net revenues by reportable segment:
Net revenues									145,500	297,499	312,508
Operating income (loss):
Operating loss:									(23,339)	(27,939)	(22,924)
Identifiable assets by reportable segment:
Identifiable assets by reportable segment:	79,368				96,516				79,368	96,516
M2M Products and Solutions
Net revenues by reportable segment:
Net revenues									39,745	37,554	31,780
Operating income (loss):
Operating loss:									(12,234)	(15,282)	$ (65,819)
Identifiable assets by reportable segment:
Identifiable assets by reportable segment:	$ 15,652				$ 14,949				$ 15,652	$ 14,949

Segment Information and Concentrations of Risk - Schedule of Geographic Concentration of Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2014	Dec. 31, 2013
Revenues from External Customers and Long-Lived Assets [Line Items]
Assets by Geographic Concentration, Total	$ 95,020	$ 111,465
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Assets by Geographic Concentration, Total	91,843	108,932
Canada
Revenues from External Customers and Long-Lived Assets [Line Items]
Assets by Geographic Concentration, Total	587	808
Europe, Latin America and Asia
Revenues from External Customers and Long-Lived Assets [Line Items]
Assets by Geographic Concentration, Total	$ 2,590	$ 1,725

Segment Information and Concentrations of Risk - Schedule of Geographic Concentration of Net Revenues (Detail) - Net Revenues - Geographic Concentration	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration percentage	100.00%	100.00%	100.00%
United States and Canada
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration percentage	91.20%	95.60%	93.10%
Latin America
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration percentage	1.00%	0.80%	2.40%
Europe, Middle East, Africa and other
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration percentage	6.60%	3.40%	4.10%
Asia and Australia
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration percentage	1.20%	0.20%	0.40%

Segment Information and Concentrations of Risk - Additional Information (Detail) - Customer Concentration	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Net Revenues \| Customer One
Segment Reporting Information [Line Items]
Concentration percentage	51.60%	58.00%
Net Revenues \| Customer Two
Segment Reporting Information [Line Items]
Concentration percentage			57.50%
Accounts Receivable \| Customer One
Segment Reporting Information [Line Items]
Concentration percentage	46.10%	24.50%
Accounts Receivable \| Customer Two
Segment Reporting Information [Line Items]
Concentration percentage		12.60%
Accounts Receivable \| Customer Three
Segment Reporting Information [Line Items]
Concentration percentage		12.00%

Retirement Savings Plan - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Defined Benefit Plan Disclosure [Line Items]
Employer matching contributions vesting period	2 years
United States
Defined Benefit Plan Disclosure [Line Items]
Employer matching contributions	$ 579	$ 1,000	$ 1,200
Canada
Defined Benefit Plan Disclosure [Line Items]
Employer matching contributions	$ 26	$ 157	$ 232

Restructuring - Additional Information (Detail) $ in Thousands	1 Months Ended			12 Months Ended			16 Months Ended
	Jun. 30, 2014 employee	Mar. 31, 2014 employee	Feb. 28, 2014 employee	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)	Dec. 31, 2014 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring charges				$ 7,760	$ 3,304	$ 0
Restructuring				1,886	610		$ 1,886
Restructuring Reserve, Noncurrent				60			60
2013 Initiatives
Restructuring Cost and Reserve [Line Items]
Reduction in number of employees after restructuring \| employee	5	21	41
Restructuring charges				2,900	$ 3,300
Restructuring costs to date							$ 6,200
2014 Initiatives
Restructuring Cost and Reserve [Line Items]
Restructuring charges				4,900
Employment Contract Costs \| 2013 Initiatives
Restructuring Cost and Reserve [Line Items]
Restructuring charges				1,700
Facility Exit Related Costs \| 2013 Initiatives
Restructuring Cost and Reserve [Line Items]
Restructuring charges				1,200
Share-based Compensation Costs \| 2014 Initiatives
Restructuring Cost and Reserve [Line Items]
Restructuring charges				$ 1,300

Restructuring - Summary of Restructuring Liability (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2014 USD ($)
Restructuring Reserve [Roll Forward]
Balance at December 31, 2013	$ 881
Accruals	7,760
Payments	(5,360)
Share-based compensation	(1,298)
Balance at December 31, 2014	1,983
Facility Exit Related Costs
Restructuring Reserve [Roll Forward]
Balance at December 31, 2013	881
Accruals	1,170
Payments	(1,819)
2013 Initiatives \| Employment Contract Costs
Restructuring Reserve [Roll Forward]
Balance at December 31, 2013	0
Accruals	1,713
Payments	(1,713)
Share-based compensation	0
Balance at December 31, 2014	0
2013 Initiatives \| Facility Exit Related Costs
Restructuring Reserve [Roll Forward]
Share-based compensation	0
Balance at December 31, 2014	232
2014 Initiatives \| Employment Contract Costs
Restructuring Reserve [Roll Forward]
Balance at December 31, 2013	0
Accruals	3,579
Payments	(1,828)
Share-based compensation	0
Balance at December 31, 2014	1,751
2014 Initiatives \| Share-based Compensation Costs
Restructuring Reserve [Roll Forward]
Balance at December 31, 2013	0
Accruals	1,298
Payments	0
Share-based compensation	(1,298)
Balance at December 31, 2014	$ 0

Quarterly Financial Information (Unaudited) - Summary of Unaudited Quarterly Results of Operations (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Quarterly Financial Information Disclosure [Abstract]
Net revenues	$ 55,361	$ 44,330	$ 37,270	$ 48,284	$ 65,335	$ 92,673	$ 91,124	$ 85,921	$ 185,245	$ 335,053	$ 344,288
Gross profit	12,506	10,486	3,987	10,068	12,039	20,383	19,024	16,848	37,047	68,294	72,443
Net loss attributable to common shareholders	$ (4,446)	$ (8,832)	$ (17,415)	$ (8,981)	$ (21,306)	$ (5,093)	$ (7,892)	$ (9,122)	$ (39,674)	$ (43,413)	$ (89,266)
Earnings Per Share, Basic ($ per share)	$ (0.10)	$ (0.23)	$ (0.51)	$ (0.26)
Earnings Per Share, Diluted ($ per share)	$ (0.13)	$ (0.23)	$ (0.51)	$ (0.26)
Basic and diluted net loss per common share (dollars per share)					$ (0.63)	$ (0.15)	$ (0.23)	$ (0.27)	$ (1.05)	$ (1.28)	$ (2.72)

- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

+ References + Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

+ Details

Schedule II - Valuation and Qualifying Accounts (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Allowance for Doubtful Accounts:
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance At Beginning of Year	$ 2,449	$ 627	$ 245
Additions Charged to Operations	86	1,936	439
Deductions From Reserves	2,318	114	57
Balance At End of Year	217	2,449	627
Warranty:
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance At Beginning of Year	2,244	2,329	1,525
Additions Charged to Operations	1,345	5,055	6,261
Deductions From Reserves	2,393	5,140	5,457
Balance At End of Year	1,196	2,244	2,329
Deferred Tax Asset Valuation Allowance:
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance At Beginning of Year	79,458	63,881	36,395
Additions Charged to Operations	11,316	15,577	27,486
Deductions From Reserves	0	0	0
Balance At End of Year	90,774	79,458	63,881
Sales Returns and Allowances:
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance At Beginning of Year	727	911	545
Additions Charged to Operations	0	196	497
Deductions From Reserves	572	380	131
Balance At End of Year	$ 155	$ 727	$ 911

Label	Element	Value
Fair Value, Inputs, Level 3 [Member]
Warrants and Rights Outstanding	us-gaap_WarrantsAndRightsOutstanding	$ 4,939,000