Document and Entity Information [Abstract] Document and Entity Information [Abstract] Document And Entity Information. Statement [Table] Statement [Table] Statement [Line Items] Statement [Line Items] Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Trading Symbol Trading Symbol Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Document Type Document Type Amendment Flag Amendment Flag Document Period End Date Document Period End Date Document Fiscal Period Focus Document Fiscal Period Focus Document Fiscal Year Focus Document Fiscal Year Focus Statement Of Financial Position [Abstract] Statement of Financial Position [Abstract] Assets [Abstract] ASSETS Cash and Cash Equivalents, At Carrying Value Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value, Total Cash and cash equivalents - beginning of period Cash and cash equivalents - end of period Restricted Cash and Cash Equivalents, Current Restricted cash Accounts Receivable, Net, Current Receivables, net of allowance for bad debts of $180 and $81 as of 3/31/12 and 12/31/11, respectively Accounts Receivable, Net, Current, Total Inventory, Net Inventory Inventory, Net, Total Prepaid Expense and Other Assets, Current Prepaid expenses and other current assets Prepaid expenses and other current assets Assets, Current Total current assets Total current assets Property, Plant and Equipment, Net Property and equipment, net Fixed assets Property, Plant and Equipment, Net, Beginning Balance Property, Plant and Equipment, Net, Ending Balance Other Assets Other Assets Goodwill Goodwill Goodwill, Beginning Balance Goodwill, Ending Balance Intangible Assets, Net (Excluding Goodwill) Intangible assets, net Intangibles Assets Total assets TOTAL ASSETS Liabilities and Stockholders Equity [Abstract] LIABILITIES AND STOCKHOLDERS' EQUITY Accounts Payable, Current Accounts payable Accounts Payable, Current, Total Accrued Professional Fees, Current Accrued legal fees Employee-Related Liabilities, Current Accrued payroll Deferred Revenue, Current Unearned revenue, current portion Warranty Reserve Warranty reserves A reserve for the estimated amount of expense related to a warranty on a specific product or service accrued at the time of sale based on historic statistical data. Debt, Current Current portion of long term debt Other Accrued Liabilities, Current Accrued liabilities, other Accrued liabilities, other Liabilities, Current Total current liabilities Total current liabilities Deferred Revenue, Noncurrent Long term portion of unearned revenue Convertible Notes Payable, Noncurrent Long term portion of convertible note, less unamortized discount of $120 as of 3/31/12 Other Long-Term Debt Other Long term debt Liabilities TOTAL LIABILITIES TOTAL LIABILITIES Stockholders Equity Attributable To Parent [Abstract] Stockholders' equity: Preferred Stock, Value, Issued Series A Convertible Preferred stock, $0.001 par value, 200,000 shares authorized, 6,330 shares issued and outstanding as of 3/31/12 and 12/31/11 Preferred Stock, Value, Issued, Total Preferred Stock, Value, Issued, Beginning Balance Preferred Stock, Value, Issued, Ending Balance Common Stock, Value, Issued Common stock, $0.001 par value, 1,300,000 shares authorized, 23,915 shares issued and outstanding as of 3/31/12 and 12/31/11 Common Stock, Value, Issued, Total Common Stock, Value, Issued, Beginning Balance Common Stock, Value, Issued, Ending Balance Additional Paid In Capital Additional paid-in capital Additional Paid in Capital, Total Additional Paid in Capital, Beginning Balance Additional Paid in Capital, Ending Balance Retained Earnings (Accumulated Deficit) Accumulated deficit Retained Earnings (Accumulated Deficit), Total Retained Earnings (Accumulated Deficit), Beginning Balance Retained Earnings (Accumulated Deficit), Ending Balance Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net Of Tax Accumulated foreign currency translation adjustments Accumulated foreign currency translation adjustments Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax, Beginning Balance Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax, Ending Balance Stockholders Equity Attributable To Parent Total stockholders' equity TOTAL STOCKHOLDERS' EQUITY Balance Balance Liabilities and Stockholders Equity Total liabilities and stockholders' equity TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY Balance Sheets Parenthetical [Abstract] Balance Sheets Parenthetical [Abstract] Balance Sheets Parenthetical. Allowance For Doubtful Accounts Receivable, Current Allowance for bad debt (in dollars) Allowance for Doubtful Accounts Receivable, Current, Beginning Balance Allowance for Doubtful Accounts Receivable, Current, Ending Balance Debt Instrument, Unamortized Discount Unamortized discount, convertible note long term (in dollars) Preferred Stock, Par Or Stated Value Per Share Series A Convertible Preferred stock, par value (in dollars per share) Preferred Stock, Shares Authorized Series A Convertible Preferred stock, shares authorized Preferred Stock, Shares Issued Series A Convertible Preferred stock, shares issued Preferred Stock, Shares Issued, Total Preferred Stock, Shares Outstanding Series A Convertible Preferred stock, shares outstanding Preferred Stock, Shares Outstanding, Beginning Balance Preferred Stock, Shares Outstanding, Ending Balance Common Stock, Par Or Stated Value Per Share Common stock, par value (in dollars per share) Common Stock, Shares Authorized Common stock, shares authorized Common Stock, Shares, Issued Common stock, shares issued Common Stock, Shares, Issued, Total Common Stock, Shares, Outstanding Common stock, shares outstanding Common Stock, Shares, Outstanding, Beginning Balance Common Stock, Shares, Outstanding, Ending Balance Income Statement [Abstract] Income Statement [Abstract] Sales Revenue, Net Revenue Sales Revenue, Net, Total Cost Of Goods and Services Sold Cost of goods sold Cost of goods sold Gross Profit Gross profit Gross profit (loss) Operating Expenses [Abstract] Operating Expenses: General and Administrative Expense General and administrative expenses General and Administrative Expense, Total Depreciation, Nonproduction Depreciation and amortization Warrant Expense Warrant expense Expenses incurred to a security that gives the holder the right to purchase shares of common stock in accordance with the terms of the instrument, usually upon payment of a specified amount. Research and Development Expense Research and development Research and development Operating Expenses Total operating expenses Total operating expenses Operating Income (Loss) Loss from operations Operating Income (Loss), Total Interest Income (Expense), Net Interest income (expense), net Other Nonoperating Income Other income, net Other income Income (Loss) From Continuing Operations Before Income Taxes, Extraordinary Items, Noncontrolling Interest Income (Loss) before provision for income taxes Income (Loss) before provision for income taxes Income Tax Expense (Benefit) Provision for income taxes Provision for income taxes Net Income (Loss) Attributable To Parent Net loss for the year Net Income (Loss) Net income (loss) Earnings Per Share, Basic Basic (in dollars per share) Earnings Per Share, Diluted Diluted (in dollars per share) Weighted Average Number Of Shares Outstanding, Basic Basic (in shares) Weighted Average Number Of Shares Outstanding, Diluted Diluted (in shares) Statement Of Income and Comprehensive Income [Abstract] Statement of Income and Comprehensive Income [Abstract] Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net Of Tax Foreign currency translation adjustments Comprehensive Income (Loss), Net Of Tax, Attributable To Parent Comprehensive income (loss) Comprehensive loss Statement Of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Net Cash Provided By (Used In) Operating Activities [Abstract] Cash Flows from Operating Activities: Adjustments To Reconcile Net Income (Loss) To Cash Provided By (Used In) Operating Activities [Abstract] Adjustments to reconcile net income (loss) to net cash used in operating activities: Issuance Of Stock and Warrants For Services Or Claims Stock and options issued for services and compensation Depreciation, Depletion and Amortization, Nonproduction Depreciation and amortization Depreciation and amortization Increase (Decrease) In Restricted Cash Change in restricted cash Change in restricted cash Gain (Loss) On Sale Of Capital Leases, Net Gain on settlement of capital lease termination Gain on settlement of capital lease termination Increase (Decrease) In Operating Capital [Abstract] Changes in operating assets and liabilities: Increase (Decrease) In Accounts Receivable Accounts receivable Accounts receivable Increase (Decrease) In Inventories Inventory Increase (Decrease) in Inventories, Total Inventory Increase (Decrease) In Prepaid Expense and Other Assets Prepaid expenses and other current assets Increase (Decrease) in Prepaid Expense and Other Assets, Total Prepaid expenses and other current assets Increase (Decrease) In Accounts Payable Accounts payable Increase (Decrease) in Accounts Payable, Total Increase (Decrease) In Accrued Liabilities Accrued liabilities Increase (Decrease) in Accrued Liabilities, Total Net Cash Provided By (Used In) Operating Activities Net cash used in operating activities Net cash used in operating activities Net Cash Provided By (Used In) Investing Activities [Abstract] Cash Flows from Investing Activities: Payments To Acquire Property, Plant, and Equipment Purchase of property and equipment Payments to Acquire Property, Plant, and Equipment, Total Purchase of property and equipment Payments To Acquire Intangible Assets Purchase of intangibles Purchase of intangibles Net Cash Provided By (Used In) Investing Activities Net cash used in investing activities Net cash used in investing activities Net Cash Provided By (Used In) Financing Activities [Abstract] Cash Flows from Financing Activities: Proceeds From Issuance Of Common Stock Proceeds on sale of common stock, net of expenses Proceeds From Long-Term Capital Lease Obligations Proceeds on settlement of capital lease termination Increase (Decrease) In Notes Payable, Current Payments on note payable Payments on note payable Proceeds From Notes Payable Proceeds from borrowing on notes payable Net Cash Provided By (Used In) Financing Activities Net cash provided by financing activities Net cash provided by financing activities Effect Of Exchange Rate On Cash and Cash Equivalents Effect of exchange rate changes on cash and cash equivalents Effect of Exchange Rate on Cash and Cash Equivalents, Total Cash and Cash Equivalents, Period Increase (Decrease) Net increase (decrease) in cash and cash equivalents Net increase (decrease) in cash and cash equivalents Supplemental Cash Flow Information [Abstract] Supplemental Disclosures of Cash Flow Information: Interest Paid Cash paid for interest Noncash Or Part Noncash Acquisition, Value Of Assets Acquired Assets disposed of during the settlement agreement and release of capital lease Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation Of Financial Statements [Abstract] Basis of Accounting [Text Block] Basis of Accounting [Text Block] Accounting Policies [Abstract] Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Significant Accounting Policies [Text Block] Earnings Per Share [Abstract] Earnings Per Share [Abstract] Earnings Per Share [Text Block] Earnings Per Share [Text Block] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Fair Value Disclosures [Text Block] Fair Value Disclosures [Text Block] Supplemental Balance Sheet Disclosures [Text Block] Supplemental Balance Sheet Disclosures [Text Block] Stockholders' Equity Note [Abstract] Stockholders' Equity Note [Abstract] Stockholders' Equity Note Disclosure [Text Block] Debt Disclosure [Abstract] Debt Disclosure [Text Block] Warrants [Text Block] The entire disclosure for stock warrants. Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Disclosure Of Compensation Related Costs, Share-Based Payments [Text Block] Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Text Block] Commitments and Contingencies Disclosure [Text Block] Segment Reporting [Abstract] Segment Reporting [Abstract] Segment Reporting Disclosure [Text Block] Segment Reporting Disclosure [Text Block] Agreement With Department Of Energy [Abstract] Agreement With Department Of Energy [Abstract] Agreement With Department Of Energy [Text Block] Agreement With Department Of Energy [Text Block] Disclosure relating to agreement with department of energy to perform services to undertake deployment of electric vehicles and charging infrastructure in certain locations within the United States. Security Purchase Agreement [Abstract] Security Purchase Agreement [Abstract] Security Purchase Agreement [Text Block] Security Purchase Agreement [Text Block] Disclosure relating to security purchase agreement entered into by the company. Agreement To Create Joint Venture Disclosure [Abstract] Agreement To Create Joint Venture Disclosure [Abstract] Agreement To Create Joint Venture Disclosure [Text Block] Agreement To Create Joint Venture Disclosure [Text Block] Disclosure relating to agreement entered into by the company to create joint venture. Subsequent Events [Abstract] Subsequent Events [Abstract] Subsequent Events [Text Block] Subsequent Events [Text Block] Class Of Stock [Axis] Class of Stock [Axis] Class Of Stock [Domain] Class of Stock [Domain] Series A Convertible Preferred Stock [Member] Liabilities, Noncurrent [Abstract] Long term liabilities: Earnings Per Share, Basic and Diluted [Abstract] Net income (loss) per share attributable to common shareholders: Nonoperating Income (Expense) [Abstract] Other income (expense): Comprehensive Income (Loss), Net Of Tax, Attributable To Parent [Abstract] Other Comprehensive Loss Other comprehensive income: Statement, Scenario [Axis] Scenario, Unspecified [Domain] Weighted Average Number of Shares Outstanding, Diluted [Abstract] Weighted-average shares used to compute net income (loss) per share attributable to common shareholders: Nature of Operations [Text Block]