Entity Central Index Key Gain (loss) in change of fair value of derivative instruments and warrants. Deferred tax assets fixed assets and intangibles Deferred tax liabilities intercompany debt Document and entity information. Document And Entity Information [Abstract] Document Type Document Type Amendment Flag Amendment Flag Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Entity Registrant Name Entity Registrant Name Trading Symbol Trading Symbol Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Entity Well-known Seasoned Issuer Entity Well Known Seasoned Issuer Entity Current Reporting Status Entity Current Reporting Status Entity Voluntary Filers Entity Voluntary Filers Entity Common Stock, Shares Outstanding Entity Common Stock Shares Outstanding Entity Public Float Entity Public Float Statement Of Financial Position [Abstract] ASSETS Assets [Abstract] Current assets: Assets Current [Abstract] Cash and cash equivalents Cash And Cash Equivalents At Carrying Value Accounts receivable, net Accounts Receivable Net Current Inventory Inventory Net Prepaid expenses and other current assets Prepaid Expense And Other Assets Current Restricted cash Restricted Cash And Cash Equivalents At Carrying Value Total current assets Assets Current Property, plant and equipment, net Property Plant And Equipment Net Intangibles, net Intangible Assets Net Excluding Goodwill Restricted cash Restricted Cash And Cash Equivalents Noncurrent Deferred tax assets Deferred Tax Assets Net Noncurrent Other assets Other Assets Noncurrent Total assets Assets LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities And Stockholders Equity [Abstract] Current liabilities: Liabilities Current [Abstract] Accounts payable and accrued expenses Accounts Payable And Accrued Liabilities Current Note payable, current portion, net of discount of $42 as of March 31, 2016 and $244 as of March 31, 2015 Notes Payable Current Derivative liabilities Derivative Liabilities Current Deferred revenue Deferred Revenue Current Deferred tax liabilities Deferred Tax Liabilities Gross Current Total current liabilities Liabilities Current Note payable, net of discount of $133 as of March 31, 2016 and $290 as of March 31, 2015 Long Term Notes Payable Deferred revenue Deferred Revenue Noncurrent Deferred tax liabilities Deferred Tax Liabilities Gross Noncurrent Other liabilities Other Liabilities Noncurrent Total liabilities Liabilities Commitments and contingencies (Note 13) Commitments And Contingencies Stockholders' equity: Stockholders Equity [Abstract] Common stock, $0.01 par value, 75,000,000 shares authorized; 14,107,126 and 9,624,275 shares issued at March 31, 2016 and 2015, respectively Common Stock Value Additional paid-in capital Additional Paid In Capital Common Stock Treasury stock, at cost, 51,506 and 34,067 shares at March 31, 2016 and 2015, respectively Treasury Stock Value Accumulated other comprehensive income (loss) Accumulated Other Comprehensive Income Loss Net Of Tax Accumulated deficit Retained Earnings Accumulated Deficit Total stockholders' equity Stockholders Equity Total liabilities and stockholders' equity Liabilities And Stockholders Equity Current portion of unamortized debt discount. Noncurrent portion of unamortized debt discount. Note payable, Unamortized Discount, Current Current Portion Of Unamortized Debt Discount Note payable, Unamortized Discount, Noncurrent Noncurrent Portion Of Unamortized Debt Discount Common stock, par value Common Stock Par Or Stated Value Per Share Common stock, shares authorized Common Stock Shares Authorized Common stock, shares issued Common Stock Shares Issued Treasury Stock, shares Treasury Stock Shares Income Statement [Abstract] Revenues Sales Revenue Net Cost of revenues Cost Of Revenue Gross profit Gross Profit Operating expenses: Operating Expenses [Abstract] Research and development Research And Development Expense Selling, general and administrative Selling General And Administrative Expense Arbitration award expense Litigation Settlement Expense Restructuring and impairments Restructuring Settlement And Impairment Provisions Amortization of acquisition related intangibles Deferred Policy Acquisition Cost Amortization Expense Total operating expenses Costs And Expenses Operating loss Operating Income Loss Change in fair value of derivatives and warrants Gain Loss In Change Of Fair Value Of Derivative Instruments And Warrants Loss on extinguishment of debt Gains Losses On Extinguishment Of Debt Gain on sale of minority interests Gain Loss On Sale Of Investments Interest expense, net Interest Income Expense Nonoperating Net Other (expense) income, net Other Nonoperating Income Expense Loss before income tax expense Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest Income tax expense (benefit) Income Tax Expense Benefit Net loss Net Income Loss Net loss per common share Earnings Per Share [Abstract] Basic Earnings Per Share Basic Diluted Earnings Per Share Diluted Weighted average number of common shares outstanding Earnings Per Share Basic Other Disclosures [Abstract] Basic Weighted Average Number Of Shares Outstanding Basic Diluted Weighted Average Number Of Diluted Shares Outstanding Statement Of Income And Comprehensive Income [Abstract] Net loss Other comprehensive gain (loss), net of tax: Other Comprehensive Income Loss Net Of Tax Period Increase Decrease [Abstract] Foreign currency translation gains (losses) Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax Total other comprehensive gain (loss), net of tax Other Comprehensive Income Loss Net Of Tax Comprehensive loss Comprehensive Income Net Of Tax Stock issued during period shares equity offering. Stock issued during period shares equity offering. Stock issued during period value new issues equity raise. Stock issued during period shares new issues equity raise. Statement Of Stockholders Equity [Abstract] Statement [Table] Statement [Table] Equity Components Statement Equity Components [Axis] Equity Component Equity Component [Domain] Common Stock Common Stock [Member] Additional Paid-in Capital Additional Paid In Capital [Member] Treasury Stock Treasury Stock [Member] Accumulated Other Comprehensive Income (Loss) Accumulated Other Comprehensive Income [Member] Accumulated Deficit Retained Earnings [Member] Statement [Line Items] Statement [Line Items] Balance Balance, shares Common Stock Shares Outstanding Issuance of common stock - ESPP Stock Issued During Period Value Employee Stock Purchase Plan Issuance of common stock - ESPP, shares Stock Issued During Period Shares Employee Stock Purchase Plans Issuance of common stock - restricted shares Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures Issuance of common stock - restricted shares, shares Stock Issued During Period Shares Restricted Stock Award Net Of Forfeitures Stock-based compensation expense Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value Issuance of stock for 401(k) match Stock Issued During Period Value Employee Benefit Plan Issuance of stock for 401(k) match, shares Stock Issued During Period Shares Employee Benefit Plan Issuance of common stock-ATM, net of costs Stock Issued During Period Value New Issues Issuance of common stock-ATM, net of costs, shares Stock Issued During Period Shares New Issues Issuance of common stock-equity offering Stock Issued During Period Value Equity Offering Issuance of common stock-equity offering, shares Stock Issued During Period Shares Equity Offering Issuance of common stock-Hudson Bay Capital Stock Issued During Period Value New Issues Equity Raise Issuance of common stock-Hudson Bay Capital, shares Stock Issued During Period Shares New Issues Equity Raise Issuance of common stock to settle liabilities Stock Issued During Period Value Other Issuance of common stock to settle liabilities, shares, other Stock Issued During Period Shares Other Reverse stock split Adjustments To Additional Paid In Capital Stock Split Reverse stock split, shares Stock Issued During Period Shares Reverse Stock Splits Repurchase of treasury stock Treasury Stock Value Acquired Cost Method Cumulative translation adjustment Balance Balance, shares Writeoff prepaid taxes. Reversal of litigation settlement amount. Proceeds from issuance follow-on public offering. Statement Of Cash Flows [Abstract] Cash flows from operating activities: Net Cash Provided By Used In Operating Activities Continuing Operations [Abstract] Adjustments to reconcile net loss to net cash used in operations: Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities [Abstract] Depreciation and amortization Depreciation And Amortization Stock-based compensation expense Allocated Share Based Compensation Expense Impairment of minority interest investments Impairment Of Investments Provision for excess and obsolete inventory Inventory Write Down Write-off prepaid taxes Writeoff Prepaid Taxes Gain on sale from minority interest investments Loss from minority interest investments Gain Loss On Investments Change in fair value of derivatives and warrants Loss on extinguishment of debt Reversal of Catlin legal costs Reversal Of Litigation Settlement Amount Non-cash interest expense Amortization Of Financing Costs And Discounts Other non-cash items Other Noncash Income Expense Changes in operating asset and liability accounts: Increase Decrease In Operating Capital [Abstract] Accounts receivable Increase Decrease In Accounts Receivable Inventory Increase Decrease In Inventories Prepaid expenses and other current assets Increase Decrease In Prepaid Deferred Expense And Other Assets Accounts payable and accrued expenses Increase Decrease In Accounts Payable And Accrued Liabilities Deferred revenue Increase Decrease In Deferred Revenue Net cash used in operating activities Net Cash Provided By Used In Operating Activities Continuing Operations Cash flows from investing activities: Net Cash Provided By Used In Investing Activities Continuing Operations [Abstract] Purchase of property, plant and equipment Payments To Acquire Property Plant And Equipment Proceeds from the sale of property, plant and equipment Proceeds From Sale Of Property Plant And Equipment Change in restricted cash Increase Decrease In Restricted Cash Proceeds from sale of minority interests Proceeds From Sale Of Equity Method Investments Change in other assets Payments For Proceeds From Other Investing Activities Net cash provided by investing activities Net Cash Provided By Used In Investing Activities Continuing Operations Cash flows from financing activities: Net Cash Provided By Used In Financing Activities Continuing Operations [Abstract] Employee taxes paid related to net settlement of equity awards Payments Related To Tax Withholding For Share Based Compensation Proceeds from the issuance of debt, net of expenses Proceeds From Debt Net Of Issuance Costs Repayment of debt Repayments Of Long Term Debt Proceeds from public equity offering, net Proceeds From Issuance Follow On Public Offering Proceeds from exercise of employee stock options and ESPP Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options Net cash provided by financing activities Net Cash Provided By Used In Financing Activities Continuing Operations Effect of exchange rate changes on cash and cash equivalents Effect Of Exchange Rate On Cash And Cash Equivalents Net increase/(decrease) in cash and cash equivalents Cash And Cash Equivalents Period Increase Decrease Cash and cash equivalents at beginning of year Cash and cash equivalents at end of year Supplemental schedule of cash flow information: Supplemental Cash Flow Information [Abstract] Cash paid for income taxes, net of refunds Income Taxes Paid Net Issuance of common stock to settle liabilities Debt Conversion Converted Instrument Amount1 Cash paid for interest Interest Paid Organization Consolidation And Presentation Of Financial Statements [Abstract] Nature of the Business and Operations and Liquidity Nature Of Operations Accounting Policies [Abstract] Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Fair Value Disclosures [Abstract] Fair Value Measurements Fair Value Disclosures [Text Block] Receivables [Abstract] Accounts Receivable Loans Notes Trade And Other Receivables Disclosure [Text Block] Inventory Disclosure [Abstract] Inventory Inventory Disclosure [Text Block] Property Plant And Equipment [Abstract] Property, Plant and Equipment Property Plant And Equipment Disclosure [Text Block] Goodwill And Intangible Assets Disclosure [Abstract] Intangible Assets Intangible Assets Disclosure [Text Block] Payables And Accruals [Abstract] Accounts Payable and Accrued Expenses Accounts Payable And Accrued Liabilities Disclosure [Text Block] Debt Disclosure [Abstract] Debt Debt Disclosure [Text Block] Derivative Instruments And Hedging Activities Disclosure [Abstract] Warrants and Derivative Liabilities Derivative Instruments And Hedging Activities Disclosure [Text Block] Income Tax Disclosure [Abstract] Income Taxes Income Tax Disclosure [Text Block] Equity [Abstract] Stockholders' Equity Stockholders Equity Note Disclosure [Text Block] Commitments And Contingencies Disclosure [Abstract] Commitments and Contingencies Commitments And Contingencies Disclosure [Text Block] Compensation And Retirement Disclosure [Abstract] Employee Benefit Plans Pension And Other Postretirement Benefits Disclosure [Text Block] Equity Method Investments And Joint Ventures [Abstract] Minority Investments Equity Method Investments Disclosure [Text Block] Restructuring And Related Activities [Abstract] Restructuring Restructuring And Related Activities Disclosure [Text Block] Segment Reporting [Abstract] Business Segments Segment Reporting Disclosure [Text Block] Quarterly Financial Data [Abstract]