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period2 Cash and cash equivalents, including cash and cash equivalents held for sale Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Credit spread Measurement Input, Credit Spread [Member] Accrued expenses and other current liabilities Total accrued expenses and other current liabilities Accrued Liabilities, Current Gross proceeds received from issuance of Series E preferred stock Preferred stock issued during the period Proceeds from Issuance of Preferred Stock and Preference Stock Diluted (in dollars per share) Earnings Per Share, Diluted Local Phone Number Local Phone Number Schedule of Stock by Class [Table] Schedule of Stock by Class [Table] Schedule of Net Carrying Amount of Debt Schedule of Debt [Table Text Block] Summary of Changes in Fair Value of Level 3 Liabilities Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Level 3 Liabilities Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Carrying amount of debt Principal amount Long-term Debt, Gross Entity Address, Address Line One Entity Address, Address Line One Entity Emerging Growth Company Entity Emerging Growth Company Threshold of consecutive trading days Debt Instrument, Convertible, Threshold Consecutive Trading Days Deferred income taxes Deferred Income Tax Expense (Benefit) Award Type [Axis] Award Type [Axis] Other long-term liabilities Disposal Group, Including Discontinued Operation, Other Liabilities Accumulated amortization, Intangible assets Finite-Lived Intangible Assets, Accumulated Amortization Repayment of outstanding principal Repayments of Secured Debt Amortization of debt issuance costs Amortization of Debt Issuance Costs Canaccord Genuity LLC Canaccord Genuity LLC [Member] Canaccord Genuity LLC Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Noncontrolling Interests Noncontrolling Interest [Member] Accumulated Deficit Retained Earnings [Member] Preferred stock, shares outstanding (in shares) Preferred Stock, Shares Outstanding Schedule of Interest Expense Interest Income and Interest Expense Disclosure [Table Text Block] Rental assets, net of accumulated depreciation of $13,705 and $15,754, respectively Rental Assets, Net Rental Assets, Net Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Award Type [Domain] Award Type [Domain] Long-term liabilities: Liabilities, Noncurrent [Abstract] Trading Symbol Trading Symbol Discontinued Operations and Disposal Groups [Abstract] Disposal Group Classification [Domain] Disposal Group Classification [Domain] Schedule of Revenues from External Customers and Long-Lived Assets [Table] Schedule of Revenues from External Customers and Long-Lived Assets [Table] Earnings Per Share Earnings Per Share [Text Block] Liabilities related to financed assets Accrued Liabilities Related To Financed Assets, Current Accrued Liabilities Related To Financed Assets, Current Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Current liabilities: Liabilities, Current [Abstract] Entity Shell Company Entity Shell Company Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Fair Value Measurement Inputs and Valuation Techniques [Line Items] Fair Value Measurement Inputs and Valuation Techniques [Line Items] Recurring Fair Value, Recurring [Member] Segment Information Segment Reporting, Policy [Policy Text Block] Additional amount to be awarded to other party in settlement, within 12 months Litigation Settlement, Additional Amount Awarded To Other Party, Within 12 Months Litigation Settlement, Additional Amount Awarded To Other Party, Within 12 Months Statement of Financial Position [Abstract] Statement of Financial Position [Abstract]