Effective Income Tax Rate Reconciliation, Tax Credit, Other, Percent Product Warranty Accrual Cash and Cash Equivalents {1} Cash and Cash Equivalents Fair Value, Inputs, Level 3 Fair Value, Hierarchy Schedule of Deferred Tax Assets and Liabilities Segment Reporting Policy Long-term Debt and Credit Arrangements Inventories, Net Increase (decrease) in accounts payable Warrants issued to non-employees Warrants issued to non-employees Note payment discount Issuance of common stock in connection with exercise of stock options and warrants, Shares Statement {1} Statement Selling, general and administrative Cost of revenues Entity Central Index Key Document Period End Date Document Type Effective Income Tax Rate Reconciliation, Percent Machinery and Equipment, Gross Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Method Used Share-based Compensation, Option and Incentive Plans Policy Financial Information by Segment Equipment purchased under capital lease Proceeds from the issuance of senior secured promissory note Statement of Cash Flows Fair value of warrants issued to consultants Fair value of warrants issued to consultants Series G Convertible Preferred Stock Total current liabilities Total current liabilities Accounts receivable-trade, net Amendment Flag Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent Accrued Liabilities and Other Liabilities Certificates of Deposit, at Carrying Value Certificates of Deposit, at Carrying Value Fair Value Assumptions, Expected Dividend Payments Equity Award Loans Payable {1} Loans Payable Schedule of Future Minimum Rental Payments for Operating Leases Schedule of Earnings Per Share, Basic and Diluted Basic and Diluted Earnings Per Share Subsequent Events Commitments and Contingencies {1} Commitments and Contingencies Depreciation and amortization Other Comprehensive Income Total other income (expense), net Total other income (expense), net Current liabilities: Entity Filer Category Inventory, Finished Goods, Net of Reserves Fair Value, Inputs, Level 1 Details Accounting Principles Accrued Expenses Schedule of Other Current Assets Exercise of stock options Net cash used in operating activities Net cash used in operating activities Total operating expenses Total operating expenses Total liabilities and stockholders' deficit Total liabilities and stockholders' deficit Accumulated deficit Line of credit LIABILITIES AND STOCKHOLDERS' DEFICIT Restricted cash and investments Document Fiscal Year Focus Entity Common Stock, Shares Outstanding Accrued Professional Fees, Current Interest Payable, Current Prepaid Insurance Fair Value Assumptions, Risk Free Interest Rate Schedule of Accrued Expenses Schedule of Inventories, net Revenue Recognition Legal Proceedings Related Party Transactions Description of Business Weighted average shares used in computing net loss per common share, basic Interest income Research and development Revenues Total assets Total assets Entity Well-known Seasoned Issuer Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent Furniture and Fixtures, Gross Long-term Debt, Type Fair Value Hierarchy Schedule of Unrecognized Compensation Cost, Nonvested Awards Summary of Operating Loss Carryforwards Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions Potential 382 Limitation Summary of Significant Accounting Policies Exercise of stock purchase warrant Effect of exchange rate changes on cash and cash equivalents Principal repayments of long-term debt and capital lease obligations Net cash (used in) provided by investing activities Net cash (used in) provided by investing activities Cash overdraft (Increase) decrease in accounts receivable Litigation settlement Adjustments to reconcile net loss to net cash flows: Share-based compensation Conversion of Series G preferred stock, Shares Conversion of Series G preferred stock, Shares Treasury Stock Preferred Stock Interest expense Other income (expense), net: Loss from operations Loss from operations Deferred compensation Series H, I and J Convertible Preferred Stock Total current assets Total current assets ASSETS Other Assets, Miscellaneous, Current Investment Owned, at Fair Value Award Type Fair Value, Inputs, Level 2 Schedule of Warrant Activity Schedule of Future Minimum Lease Payments for Capital Leases Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share Recent Accounting Pronouncements Property and Equipment Use of Accounting Estimates Conversion of line of credit to second and third senior secured convertible promissory note Conversion of Series G preferred stock, Value Stockholders' Deficit, beginning of period, Shares Stockholders' Deficit, beginning of period, Shares Stockholders' Deficit, end of period, Shares Equity Components Commitments and contingencies Accrued expenses Property and equipment, net Cash and cash equivalents Cash and cash equivalents at beginning of period Cash and cash equivalents at end of period Accrued Employee Benefits, Current Inventory, Work in Process, Net of Reserves Fair Value Assumptions, Expected Term Certificates of Deposit Schedule of Effective Income Tax Rate Reconciliation Income Tax Uncertainties Policy Conversions of convertible preferred stock to common shares Interest paid Cash flows from investing activities: Increase (decrease) in deferred revenue Bad debt expense (recoveries) Issuance of common stock in connection with exercise of stock options and warrants, Value Proceeds from common stock issued in connection with exercise of stock options Total liabilities Total liabilities Entity Public Float Document and Entity Information: Shipping and Handling Stock Options and Warrants Supplemental Disclosure of Cash Flow Information: Additional Paid-in Capital Income Statement Non-current restricted cash and investments Document Fiscal Period Focus Leasehold Improvements, Gross Schedule of Prepaid Expenses and Other Current Assets Research and Development Costs Concentration of Credit Risk and Major Customers Principles of Consolidation Net borrowings on line of credit Purchases of property and equipment Changes in assets and liabilities: Change in fair value of note conversion option liability Class of Stock Common Stock Treasury stock Long-term obligations under capital lease, net of current maturities Entity Voluntary Filers License Costs Software Development Costs Common stock issued for consulting services Net change in cash and cash equivalents Net cash provided by financing activities Net cash provided by financing activities Proceeds from sale of equipment (Increase) decrease in prepaid expenses and other current assets (Increase) decrease in inventories Cash flows from operating activities: Conversion of senior secured convertible promissory note and promissory note, Value Conversions of senior secured convertible promissory note and interest to common shares Class of Stock {1} Class of Stock Statement of Stockholders' Equity Operating expenses: Inventories, net Accrued Payroll Taxes, Current Capital Leases, Lessee Balance Sheet, Assets by Major Class, Other Property, Plant, and Equipment, Gross Schedule of Stock Option Plan Range of Exercise Price Income Taxes {1} Income Taxes Policies Income Taxes Common stock issued to consultants, Shares Deferred Compensation Total stockholders' deficit Total stockholders' deficit Stockholders' Deficit, beginning of period, Value Stockholders' Deficit, end of period, Value Accounts payable Statement of Financial Position Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Restricted Cash and Cash Equivalents Domestic Line of Credit Foreign Currency Translation Property, Plant and Equipment, Net {1} Property, Plant and Equipment, Net Sales tax settlement adjustment Provision for doubtful accounts Change in fair value of warrant derivative liability Common stock issued to consultants, Value Common stock issued to consultants Series G Convertible Statement Additional paid-in capital Current maturities of obligations under capital lease Senior secured convertible promissory notes Prepaid expenses and other current assets Current assets: Entity Registrant Name Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Senior Notes {1} Senior Notes Stock-Based Compensation Expense by Income Statement Line Item Tables/Schedules Advertising Costs Intangible Assets and Impairment of Long-lived Assets Retroactive Adjustment Benefit Plans and Employment Agreements of Executive Officers Restricted Cash and Investments - Current and Long-term Notes Total Stockholders' Deficit Accumulated Deficit Equity Component Preferred stock Long-term liabilities: Current Fiscal Year End Date Long-term Debt, Type {1} Long-term Debt, Type Schedule of Product Warranty Liability Accounts Receivable Inventories Cash and Cash Equivalents Increase (decrease) in accrued expenses (Gain) loss on disposal of equipment Stock-based compensation expense Other comprehensive income {1} Other comprehensive income Weighted average shares used in computing net loss per common share, diluted Net loss Net loss Common stock Total long-term liabilities Total long-term liabilities Deferred revenue, net of current Entity Current Reporting Status Employee Stock Option Schedule of Restricted Cash and Cash Equivalents Patent Costs Cash flows from financing activities: Amortization of deferred compensation Net loss per share, basic and diluted Deferred revenue Other non-current assets Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent Inventory, Raw Materials, Net of Reserves Fair Value Assumptions, Expected Volatility Rate Cash and Cash Equivalents {2} Cash and Cash Equivalents Warranty Costs Fair Value Measurements Notes Payable {1} Notes Payable Non-cash Investing and Financing Activity: Payments received on note receivable Transfer to restricted funds, net Conversion of senior secured convertible promissory note and promissory note, Shares Gross margin Gross margin Other comprehensive income Stockholders' deficit: Senior secured promissory note