Accounting Policies [Abstract] Accounting Policies [Abstract] Accounts Payable Current Accounts payable Accounts Receivable Net Current Accounts receivable, net of allowance for doubtful accounts of $1,633 at September 30, 2013 and $627 at December 31, 2012 Accrued Liabilities Current Accrued expenses Accrued expenses, Total Accrued Professional Fees Current Professional fees Accrued Royalties Current Royalties Accumulated Depreciation Depletion And Amortization Property Plant And Equipment Property and equipment, net of accumulated depreciation Accumulated Other Comprehensive Income Loss Net Of Tax Accumulated other comprehensive income (loss) Acquired Finite Lived Intangible Assets [Line Items] Acquired Finite-Lived Intangible Assets [Line Items] Acquired intangible assets accumulated amortization. Acquired Intangible Assets Accumulated Amortization Intangible assets, net of accumulated amortization Additional Paid In Capital Additional paid-in capital Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities [Abstract] Adjustments to reconcile net loss to net cash used in operating activities: Allocated Share Based Compensation Expense Amounts for share-based compensation awards Allowance For Doubtful Accounts Receivable Current Accounts receivable, net of allowance for doubtful accounts Amendment Flag Amendment Flag Amortization Expense [Member] Amortization Expense [Member] Total amortization expense [Member] Amortization Of Intangible Assets Amortization of purchased intangible assets Amortized Cost and Fair Value Debt Securities [Abstract] Amortized Cost And Fair Value Debt Securities [Abstract] Amortized Cost and Fair Value Debt Securities [Abstract] Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount Weighted-average options RSUs, and unissued ESPP shares outstanding Asia countries. Asia Countries [Member] Asia and Australia [Member] Assets Assets by Geographic Concentration, Total Total assets Identifiable assets Assets [Abstract] ASSETS Assets Current Total current assets Assets Current [Abstract] Current assets: Assets Fair Value Disclosure Total financial assets Assets Fair Value Disclosure [Abstract] Assets: Available For Sale Securities Estimated Fair Value Available For Sale Securities [Abstract] Available-for-sale: Available For Sale Securities Amortized Cost Amortized Cost Net amount of accumulated unrealized gains (losses) on Investment in available-for-sale that are recognized in AOCI. Availableforsale Securities Gross Unrealized Gain Loss Accumulated In Aoci Net unrealized loss Available For Sale Securities Gross Unrealized Gains Gross Unrealized Gains Available For Sale Securities Gross Unrealized Loss Gross Unrealized Losses Balance Sheet Details [Line Items] Balance Sheet Details [Line Items] Balance Sheet Details [Line Items] Building rent incentives to fund leasehold improvements. Building Rent Incentives To Fund Leasehold Improvements Building rent incentives to fund leasehold improvements C A Canada [Member] Cash And Cash Equivalents At Carrying Value Cash and cash equivalents, end of period Cash and cash equivalents, beginning of period Cash and cash equivalents Cash And Cash Equivalents At Carrying Value [Abstract] Cash equivalents Cash And Cash Equivalents Period Increase Decrease Net increase (decrease) in cash and cash equivalents Cash Equivalents At Carrying Value Total cash equivalents Cash flow non cash investing activities disclosure. Cash Flow Non Cash Investing Activities Disclosure [Abstract] Supplemental disclosures of non-cash investing activities: Cash paid during the year. Cash Paid During Year [Abstract] Cash paid during the year for: Certificates Of Deposit [Member] Certificates of deposit [Member] Commitments And Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Commitments And Contingencies Disclosure [Text Block] Commitments and Contingencies Common Stock Par Or Stated Value Per Share Common stock, par value Common Stock Shares Authorized Common stock, shares authorized Common Stock Shares Issued Common stock, shares issued Common Stock Shares Outstanding Common stock, shares outstanding Common Stock Value Common stock, par value $0.001; 50,000 shares authorized, 34,078 and 33,655 shares issued and outstanding at September 30, 2013 and December 31, 2012, respectively Comprehensive Income Net Of Tax Total comprehensive loss Concentration Risk Percentage 1 Net revenue, percentage Condensed Financial Information Of Parent Company Only Disclosure [Abstract] Condensed Financial Information of Parent Company Only Disclosure [Abstract] Condensed Financial Information Of Parent Company Only Disclosure [Text Block] Balance Sheet Details Consolidation Items [Axis] Consolidation Items [Axis] Consolidation Items [Domain] Consolidation Items [Domain] Consolidation Policy [Text Block] Principles of Consolidation Corporate debentures bonds. Corporate Debentures Bonds [Member] Corporate debentures / bonds [Member] Cost Of Revenue Cost of net revenues Cost Of Sales [Member] Cost of net revenues [Member] Current Fiscal Year End Date Current Fiscal Year End Date Customer one. Customer One [Member] Customer One [Member] Customer two. Customer Two [Member] Customer Two [Member] Deferred Other Tax Expense Benefit Deferred tax benefits including income tax expense Deferred Revenue Deferred revenue Deferred Tax Asset [Domain] Deferred Tax Asset [Domain] Deferred Tax Assets Liabilities Net Net deferred tax assets Deferred Tax Assets Net Current Deferred tax assets, net Deferred Tax Assets Net Noncurrent Deferred tax assets, net Deferred Tax Assets Tax Credit Carry-forwards Research [Member] Deferred Tax Assets Tax Credit Carryforwards Research [Member] Deferred Tax Assets Tax Credit Carry Forwards Research [Member] Deferred Tax Assets Valuation Allowance Valuation allowance Depreciation And Amortization Depreciation and amortization Developed Technology Rights [Member] Developed technologies [Member] Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Disclosure Of Compensation Related Costs Share Based Payments [Text Block] Share-Based Compensation Disclosure Of Share Based Compensation Arrangements By Share Based Payment Award [Text Block] Summary of Payment for Share-Based Compensation Awards Document and entity information. Document And Entity Information [Abstract] Document And Entity Information [Abstract] Document Fiscal Period Focus Document Fiscal Period Focus Document Fiscal Year Focus Document Fiscal Year Focus Document Period End Date Document Period End Date Document Type Document Type Earnings Per Share [Abstract] Earnings Per Share [Abstract] Earnings Per Share Basic And Diluted Basic and diluted Earnings Per Share Basic And Diluted [Abstract] Net loss per share: Earnings Per Share [Text Block] Earnings Per Share Effect Of Exchange Rate On Cash And Cash Equivalents Effect of exchange rates on cash and cash equivalents Employee Related Liabilities Current Payroll and related expenses Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] Employee Severance [Member] Employee Severance Costs [Member] Entity Central Index Key Entity Central Index Key Entity Common Stock Shares Outstanding Entity Common Stock, Shares Outstanding Entity Filer Category Entity Filer Category Entity Registrant Name Entity Registrant Name Equity [Abstract] Equity [Abstract] Europe countries. Europe Countries [Member] Europe, Middle East and Africa [Member] Europe, Latin America and Asia. 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Finite Lived Intangible Assets Impairment Losses Impairment loss Finite Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Finite Lived Intangible Assets Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite Lived Intangible Assets [Member] Intangible assets [Member] Finite Lived Intangible Assets Net Purchased intangible assets net Net Gain Loss On Sale Of Fixed Assets Gain Loss On Sale Of Fixed Assets Loss on sale/disposal of fixed asset General And Administrative Expense General and administrative General And Administrative Expense [Member] General and administrative [Member] Goodwill Carrying amount of goodwill Goodwill And Intangible Asset Impairment Loss on goodwill and purchased intangible assets impairment Goodwill and intangible assets impairment Impairment of goodwill and purchased intangible assets Goodwill And Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Goodwill Disclosure [Text Block] Goodwill Goodwill [Member] Goodwill [Member] Gross Profit Gross profit Guarantees [Abstract] Guarantees [Abstract] Impairment Of Intangible Assets Finitelived Purchases of intangible assets Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments Loss before income taxes Income Statement [Abstract] Income Statement [Abstract] Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Income Tax Disclosure [Text Block] Income Taxes Income Taxes Paid Net Income taxes Income Tax Expense Benefit Income tax expense (benefit), including discrete items Income tax provision Increase Decrease In Accounts Payable Accounts payable Increase Decrease In Accounts Receivable Accounts receivable Increase Decrease In Accrued Liabilities And Other Operating Liabilities Accrued expenses, income taxes, and other Increase Decrease In Inventories Inventories Increase Decrease In Operating Capital [Abstract] Changes in assets and liabilities: Increase Decrease In Prepaid Deferred Expense And Other Assets Prepaid expenses and other assets Indefinite Lived Intangible Assets By Major Class [Axis] Indefinite-lived Intangible Assets [Axis] Indefinite Lived Intangible Assets By Major Class [Line Items] Indefinite-lived Intangible Assets [Line Items] Indefinite Lived Intangible Assets Major Class Name [Domain] Indefinite-lived Intangible Assets, Major Class Name [Domain] Intangible asset deduction in impairment charge. Intangible Asset Deduction In Impairment Charge Deduction on impairment charges Intangible Assets Disclosure [Text Block] Intangible Assets Intangible assets impaired accumulated impairment loss. Intangible Assets Impaired Accumulated Impairment Loss Accumulated Impairment Intangible Assets Net Excluding Goodwill Intangible assets, net of accumulated amortization of $12,730 at September 30, 2013 and $11,951 at December 31, 2012 Interest Income Expense Nonoperating Net Interest income, net Interest Paid Net Interest Inventory Disclosure [Abstract] Inventory Disclosure [Abstract] Inventory Finished Goods Finished goods Inventory Net Inventories Total inventory Inventory Raw Materials Raw materials and components Inventory Write Down Inventory provision Investments Securities In Unrealized Loss Position For Continuous Twelve Month Period Or Longer Book Value Investments Securities In Unrealized Loss Position For Continuous Twelve Month Period Or Longer Book Value Investments in marketable securities with unrealized loss position Investment Type [Axis] Investment Type [Axis] Investment Type Categorization [Member] Investments [Domain] Latin America [Member] Latin America [Member] Liabilities Total liabilities Liabilities And Stockholders Equity Total liabilities and stockholders' equity Liabilities And Stockholders Equity [Abstract] LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities Current Total current liabilities Liabilities Current [Abstract] Current liabilities: Licensing Agreements [Member] Acquired software licenses [Member] Line Of Credit Facility Amount Outstanding Line of credit facility Line Of Credit Facility Maximum Amount Outstanding During Period Amount borrowed against the facility Lines Of Credit Current Short-term margin loan facility Litigation Case [Axis] Litigation Case [Axis] Litigation Case Type [Domain] Litigation Case [Domain] Litigation Settlement Amount Settlements on legal matters Long Term Investments Total long-term marketable securities Long term marketable securities. Long Term Marketable Securities [Member] Long-term marketable securities [Member] Loss Contingencies [Line Items] Loss Contingencies [Line Items] Loss Contingencies [Table] Loss Contingencies [Table] Loss Contingency Lawsuit Filing Date "Lawsuit" filed date Major Types Of Debt And Equity Securities [Axis] Major Types of Debt and Equity Securities [Axis] Major Types Of Debt And Equity Securities [Domain] Major Types of Debt and Equity Securities [Domain] Marketable Securities Current Marketable securities Marketable Securities Current [Abstract] Short-term & Long term marketable securities: Marketable Securities Gain Loss Excluding Other Than Temporary Impairments Net impairment loss on marketable securities Marketable Securities Held At Bank Marketable Securities Held At Bank Marketable securities held at bank Marketable securities maturity in years. Marketable Securities Maturity In Years Maturity in Years Marketable Securities Noncurrent Marketable securities Marketable Securities Restricted Current Restricted marketable securities Marketable Securities [Text Block] Summary of Marketable Securities Available-for-Sale Market development fund and price protection. Market Development Fund And Price Protection Market development funds and price protection Maximum [Member] Maximum [Member] Minimum [Member] Minimum [Member] Mobile computing products. Mobile Computing Products [Member] Mobile Computing Products [Member] Money Market Funds [Member] Money market funds [Member] Municipal Bonds [Member] Municipal bonds [Member] Net Cash Provided By Used In Financing Activities Net cash provided by financing activities Net Cash Provided By Used In Financing Activities [Abstract] Cash flows from financing activities: Net Cash Provided By Used In Investing Activities Net cash provided by (used in) investing activities Net Cash Provided By Used In Investing Activities [Abstract] Cash flows from investing activities: Net Cash Provided By Used In Operating Activities Net cash used in operating activities Net Cash Provided By Used In Operating Activities [Abstract] Cash flows from operating activities: Net Income Loss Net loss Net loss Non Cash Income Tax Expense Benefit Non Cash Income Tax Expense Benefit Non-cash income tax expense Offsetting [Abstract] Offsetting [Abstract] Operating Costs And Expenses [Abstract] Operating costs and expenses: Operating Expense [Member] General and administrative expenses [Member] Operating Expenses Total operating costs and expenses Operating Income Loss Operating loss Operating loss Operating Income Loss [Abstract] Operating loss by reportable segment: Operating Segments [Member] Operating Segments [Member] Organization Consolidation And Presentation Of Financial Statements Disclosure [Text Block] Basis of Presentation Other Accrued Liabilities Current Other Other Assets Noncurrent Other assets Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax Unrealized gain (loss) on cash equivalents and marketable securities, net of tax Other Intangible Assets [Member] Other [Member] Other Liabilities Noncurrent Other long-term liabilities Other Nonoperating Income Expense Other income (expense), net Other Nonoperating Income Expense [Abstract] Other income (expense): Other Restructuring [Member] Other Restructuring Charges [Member] Payables And Accruals [Abstract] Payables and Accruals [Abstract] Payments For Restructuring Payments Payments To Acquire Marketable Securities Purchases of marketable securities Payments To Acquire Property Plant And Equipment Purchases of property and equipment Preferred Stock Par Or Stated Value Per Share Preferred stock, par value Preferred Stock Shares Authorized Preferred stock, shares authorized Preferred Stock Shares Outstanding Preferred stock, shares outstanding Preferred Stock Value Preferred stock, par value $0.001; 2,000 shares authorized and none outstanding Prepaid Expense And Other Assets Current Prepaid expenses and other Proceeds From Repayments Of Short Term Debt Proceeds from the issuance of short-term debt Proceeds From Sale And Maturity Of Marketable Securities Marketable securities maturities / sales Proceeds From Stock Options Exercised Proceeds from stock option exercises and ESPP net of taxes paid on vested restricted stock units Product Warranty Accrual Warranty liability at end of period Warranty liability at beginning of period Product warranty Product Warranty Accrual Payments Deductions from liability Product Warranty Accrual Warranties Issued Additions charged to operations Product warranty coverage period. Product Warranty Coverage Period Product warranty period Property Plant And Equipment Net Property and equipment, net of accumulated depreciation of $65,659 at September 30, 2013 and $59,702 at December 31, 2012 Provision For Doubtful Accounts Provision for bad debts Purchased intangible asset amortization expense classification. Purchased Intangible Asset Amortization Expense Classification Table [Text Block] Summary of Amortization Expenses of Purchased Intangible Assets Range [Axis] Range [Axis] Range [Member] Range [Domain] Repayments Of Debt And Capital Lease Obligations Principal payments under capital lease obligations Repayments Of Short Term Debt Principal repayments of short-term debt Research And Development Expense Research and development Research And Development Expense [Member] Research and development [Member] Restructuring And Related Activities [Abstract] Restructuring and Related Activities [Abstract] Restructuring And Related Activities Disclosure [Text Block] Restructuring Restructuring And Related Activities [Table] Restructuring And Related Activities [Table] Restructuring And Related Activities [Table] Restructuring And Related Activity Line Items Restructuring And Related Activity [Line Items] Restructuring And Related Activity Line Items Restructuring And Related Cost Expected Number Of Positions Eliminated Reduction in number of employees after restructuring Restructuring Charges Restructuring charges Accruals Additional employee severance expenses Restructuring Cost And Reserve [Axis] Restructuring Type [Axis] Restructuring Cost And Reserve [Line Items] Restructuring Cost and Reserve [Line Items] Restructuring Reserve Current Balance at September 30, 2013 Balance at December 31, 2012 Restructuring Retained Earnings Accumulated Deficit Accumulated deficit Revenue from external customers by geographic region. Revenue From External Customers By Geographic Region Net revenues by geographic region Revenues Net revenues Revenues From External Customers And Long Lived Assets [Line Items] Revenues from External Customers and Long-Lived Assets [Line Items] Sales Revenue Goods Net [Abstract] Net revenues by reportable segment: Scenario Forecast [Member] Scenario, Forecast [Member] Scenario Unspecified [Domain] Scenario, Unspecified [Domain] Schedule Of Accrued Liabilities Table [Text Block] Summary of Accrued Expenses Schedule Of Available For Sale Securities [Line Items] Schedule of Available-for-sale Securities [Line Items] Schedule Of Available For Sale Securities [Table] Schedule of Available-for-sale Securities [Table] Schedule of Balance Sheet Details [Table] Schedule Of Balance Sheet Details [Table] Schedule Of Balance Sheet Details [Table] Schedule Of Change In Accounting Estimate [Table] Schedule of Change in Accounting Estimate [Table] Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Table] Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table] Schedule Of Entity Wide Disclosure On Geographic Areas Long Lived Assets In Individual Foreign Countries By Country [Text Block] Schedule of Geographic Concentration of the Assets Scheduleof Finite Lived Intangible Assets Future Amortization Expense Table [Text Block] Schedule of Amortization Expense of Purchased Intangible Assets Expected to be Recognized Schedule Of Finite Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Schedule Of Finite Lived Intangible Assets Table [Text Block] Schedule of Amortizable Purchased Intangible Assets from Acquisition Schedule Of Indefinite Lived Intangible Assets [Table] Schedule of Indefinite-Lived Intangible Assets [Table] Schedule Of Inventory Current Table [Text Block] Summary of Inventories Schedule Of Product Warranty Liability Table [Text Block] Summary of Accrued Warranty Obligations Schedule Of Restructuring And Related Costs [Table] Schedule of Restructuring and Related Costs [Table] Schedule Of Restructuring And Related Costs [Text Block] Summary of Restructuring Liability Schedule Of Revenue From External Customers Attributed To Foreign Countries By Geographic Area [Text Block] Schedule of Geographic Concentration of Net Revenues Schedule Of Revenues From External Customers And Long Lived Assets [Table] Schedule of Revenues from External Customers and Long-Lived Assets [Table] Schedule Of Segment Reporting Information By Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Schedule Of Segment Reporting Information By Segment [Text Block] Schedule of Net Revenues, Operating Loss and Identifiable Assets of Segments Segment [Domain] Segments [Domain] Segment Geographical [Domain] Geographical [Domain] Segment Reporting [Abstract] Segment Reporting [Abstract] Segment Reporting Disclosure [Text Block] Segment Information and Concentrations of Risk Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Segment Reporting Information Revenue [Abstract] Identifiable assets by reportable segment: Selling And Marketing Expense Sales and marketing Selling And Marketing Expense [Member] Sales and marketing [Member] September eighteenth two thousand eight. September Eighteenth Two Thousand Eight [Member] September Eighteenth Two Thousand Eight [Member] September fifteenth two thousand eight. September Fifteenth Two Thousand Eight [Member] September Fifteenth Two Thousand Eight [Member] September Twenty Fourth Two Thousand Ten [Member] September Twenty Fourth Two Thousand Ten [Member] September Twenty Fourth Two Thousand Ten [Member] Share Based Compensation Share-based compensation expense Short Term Investments Total short-term marketable securities Short term marketable securities member. Short Term Marketable Securities [Member] Short-term marketable securities [Member] Standard Product Warranty Description Product warranty description Statement Business Segments [Axis] Segments [Axis] Statement Geographical [Axis] Geographical [Axis] Statement [Line Items] Statement [Line Items] Statement Of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Statement Of Financial Position [Abstract] Statement of Financial Position [Abstract] Statement Of Income And Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Statement Scenario [Axis] Scenario [Axis] Statement [Table] Statement [Table] Stockholders Equity Total stockholders' equity Stockholders Equity [Abstract] Stockholders' equity: Stockholders Equity Before Treasury Stock Stockholders' equity before treasury stock Subsequent Event [Member] Subsequent Event [Member] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Supplemental Cash Flow Information [Abstract] Supplemental disclosures of cash flow information: Trade Names [Member] Trade name [Member] Trade Secrets [Member] M2M Products and Solutions [Member] Trading Symbol Trading Symbol Treasury Stock Shares Treasury stock, shares Treasury Stock Value Treasury stock at cost; 2,436 common shares at September 30, 2013 and December 31, 2012, respectively Type Of Restructuring [Domain] Type of Restructuring [Domain] Uncertain income tax position unrecognized. Uncertain Income Tax Position Unrecognized Uncertain income tax (less than) United States and Canada. United States And Canada [Member] United States and Canada [Member] Unrecognized Tax Benefits Period Increase Decrease Total liability for unrecognized tax benefits included other long-term liabilities Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations Expected unrecognized tax benefits due to expiration of limitations applicable to the 2008 taxable year U S United States [Member] Use Of Estimates Use of Estimates U S Government Agencies Debt Securities [Member] Government agency securities [Member] U S Treasury Securities [Member] US Treasury securities [Member] Valuation Allowance By Deferred Tax Asset [Axis] Valuation Allowance by Deferred Tax Asset [Axis] Weighted Average Number Of Share Outstanding Basic And Diluted Basic and diluted Basic and Diluted weighted-average common and potential common shares outstanding Weighted Average Number Of Shares Outstanding [Abstract] Weighted average shares used in computation of basic and diluted net loss per share: