Weighted average amortization period, years Expected term, years Granted Research and Development Expense {1} Research and Development Expense Notes Cash flows from financing activities Treasury Stock Preferred stock shares outstanding Accumulated deficit ASSETS Document and Entity Information May Offering [Member] 2010 Offerings [Domain] Note 8. Supplemental Cash Flow Information Net cash used in operating activities Net cash used in operating activities Treasury stock, 24,331 shares at cost Treasury stock, 24,331 shares at cost Preferred stock, $.001 par value; 10,000,000 shares authorized, no shares issued and outstanding Deferred revenue - net of current portion Current liabilities: Document Type Options Outstanding, beginning of period Expected volatility Work-in-process Note 4. Stockholders' Equity Net loss and comprehensive loss Net loss and comprehensive loss Common stock shares issued Preferred stock shares authorized Allowance for doubtful accounts Customer deposits Other current assets Balance Sheets Entity Public Float Entity Common Stock, Shares Outstanding Entity Registrant Name Weighted Average Remaining Contractual Term of Warrants Outstanding Building Note 7. Stock-based Compensation Note 2. Inventories Decrease (increase) in receivables Decrease (increase) in receivables Cashless option exercises Exercise of warrants for cash Common Stock Issued For Services Weighted average number of shares outstanding: Basic Total cost of revenues Total cost of revenues Cost of Revenues: Total current assets Total current assets Outstanding, End of Period Grant date fair value per share Schedule of Earnings Per Share Reconciliation Note 3. Property and Equipment Loss on disposition of property and equipment Cost of related party sales Entity Well-known Seasoned Issuer Land Furnitures and fixtures Finished goods Parts and supplies Schedule of Stock Based Compensation Note 1. Basis of Presentation Increase (decrease) in accounts payable Adjustments to reconcile net loss to net cash used in operating activities: Common Stock Issued For Cash, net of offering costs of $762,528 Loss before income taxes Loss before income taxes Sales Revenues: Common stock shares authorized Commitments and contingencies LIABILITIES AND STOCKHOLDERS' EQUITY February Offering [Member] Selling, General and Administrative Expenses Weighted Average Exercise Price of Warrants Outstanding Building improvements Operating costs and expenses: Cost of equipment rental Cost of sales Common stock, $.001 par value, 80,000,000 shares authorized, 29,777,522 shares issued Stockholders' equity: August Offering [Member] Weighted Average Remaining Contact Term (Years) Weighted Average Exercise Price Option award schedule {1} Option award schedule Schedule of Inventory Tables/Schedules Note 9. Recent Accounting Pronouncements Note 6. Related Party Transactions Equity Components Net loss per common share: Basic Statements of Comprehensive Loss Preferred stock par value Total assets Total assets Exercisable Forfeited or expired Rental equipment Net decrease in cash and cash equivalents Net decrease in cash and cash equivalents Decrease (increase) in other current assets Decrease (increase) in other current assets Common Stock Issued For Cash, net of offering costs of $744,844 Statements of Stockholders' Equity Weighted average number of shares outstanding: Diluted Sales to related parties Treasury stock shares Document Fiscal Period Focus Scenario [Axis] Allocated stock-based compensation expense Dilutive Securities, Effect on Basic Earnings Per Share, Other Property and equipment, gross Increase (decrease) in customer deposits Common Stock Net loss per common share: Diluted Other income (expense): Loss from operations Loss from operations Preferred stock shares issued Total stockholders' equity Total stockholders' equity Balance Balance Risk-free interest rate Expected dividends Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Report Line Equipment Schedule of Outstanding Warrants Property and Equipment Consisted of The Following: Exercise of options for cash - shares Common Stock Issued For Cash, net of offering costs of $744,844 - Shares Common Stock Issued For Services - Shares Balance - Shares Balance - Shares Balance - Shares Gross margin Gross margin Balance Sheets Parenthetical Additional paid-in capital Patents, net Cash and cash equivalents Cash and cash equivalents, beginning of period Cash and cash equivalents, end of period Statement {1} Statement Entity Current Reporting Status Document Period End Date Exercised Aggregate Intrinsic Value Outstanding Warrants Common Stock Issued For Cash, net of offering costs of $762,528 - Shares Equipment rental Accrued liabilities Entity Central Index Key Shares Cost of Sales Schedule of Share-based Compensation, Activity Statements of Cash Flows Research and development Total current liabilities Total current liabilities Accounts payable Accounts receivable, net of allowance for doubtful accounts of $20,000 Current Fiscal Year End Date Exercise price Accumulated depreciation Depreciation and amortization Exercise of options for cash Exercise of warrants for cash - shares Stock-based compensation Interest income Total liabilities Total liabilities Related party trade accounts receivable Document Fiscal Year Focus Option award schedule Details Note 10. Subsequent Events Purchase of property and equipment Purchase of property and equipment Increase (decrease) in deferred revenue Increase (decrease) in accrued liabilities Cash flows from operating activities: Equity Component Additional Paid In Capital Selling, general and administrative Total revenues Total revenues Common stock par value Deferred revenue - current portion Current assets: Entity Voluntary Filers November Offering [Member] Unrecognized stock-based compensation expense Cashless option exercises - shares Total other income (expense) Total other income (expense) Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs, by Report Line Inventory Reserve Inventory Reserve Note 5. Net Loss Per Common Share Cash flows from investing activities: Decrease (increase) in inventories Decrease (increase) in inventories Accumulated Deficit Income tax benefit Other income (expense) Total operating costs and expenses Total operating costs and expenses Total liabilities and stockholders' equity Total liabilities and stockholders' equity Property and equipment, net Inventories, net Statement Entity Filer Category Amendment Flag