Statement of Financial Position [Abstract] ASSETS ASSETS [Abstract] Current assets: Current assets: [Abstract] Cash Accounts receivable, less allowance of $9,488 and $3,772 for doubtful accounts Inventories, net Prepaid expenses and other Total current assets Property and equipment, net Intangible assets, net Prepaid expenses and other - noncurrent Total assets LIABILITIES AND STOCKHOLDERS' EQUITY LIABILITIES AND STOCKHOLDERS' EQUITY [Abstract] Current liabilities: Current liabilities: [Abstract] Accounts payable Accrued liabilities Total current liabilities Other liabilities - noncurrent Total liabilities Commitments and contingencies (Note 8) Stockholders' equity: Stockholders' equity: [Abstract] Preferred stock, $0.00001 par value; 5,000,000 shares authorized; none issued and outstanding Common stock, $0.00001 par value; 50,000,000 shares authorized; 33,002,099 and 32,900,705 shares issued and outstanding, respectively Additional paid-in capital Accumulated deficit Total stockholders' equity Total liabilities and stockholders' equity Accounts receivable, allowance for doubtful accounts (in Dollars) Preferred stock, par value (in Dollars per share) Preferred stock, shares authorized Preferred stock, shares issued Preferred stock, shares outstanding Common stock par value (in Dollars per share) Common stock, shares authorized Common stock, shares issued Common stock, shares outstanding Income Statement [Abstract] Revenues: Revenues: [Abstract] Product sales Contract and other Total revenues Cost of revenues Gross profit Operating expenses: Operating expenses: [Abstract] Selling, general and administrative Research and development Total operating expenses Income (loss) from operations Other income Income (loss) from operations before income taxes Income tax expense Net income (loss) Net income per common share Net income per common share [Abstract] Basic (in Dollars per share) Diluted (in Dollars per share) Weighted average common shares outstanding: Weighted average common shares outstanding: [Abstract] Basic (in Shares) Diluted (in Shares) Statement of Cash Flows [Abstract] Operating Activities: Operating Activities: [Abstract] Net income (loss) Adjustments to reconcile net income (loss) to net cash provided by operating activities: Adjustments to reconcile net income (loss) to net cash provided by operating activities: [Abstract] Depreciation and amortization Provision for doubtful accounts Warranty provision Inventory obsolescence Share-based compensation Loss on sale or impairment of patents Changes in operating assets and liabilities: Changes in operating assets and liabilities: [Abstract] Accounts receivable Inventories Prepaid expenses and other Prepaid expenses and other - noncurrent Accounts payable Warranty settlements Accrued and other liabilities Net cash provided by operating activities Investing Activities: Investing Activities: [Abstract] Capital expenditures Patent costs paid Net cash used in investing activities Financing Activities: Financing Activities: [Abstract] Repurchase of common stock Proceeds from exercise of stock options Net cash (used in) provided by financing activities Net increase in cash Cash, beginning of period Cash, end of period Supplemental Disclosure of Cash Flow Information Supplemental Disclosure of Cash Flow Information [Abstract] Cash paid (refunded) for taxes Disclosure Text Block [Abstract] Nature of Operations [Text Block] Basis of Presentation and Significant Accounting Policies [Text Block] New Accounting Pronouncements and Changes in Accounting Principles [Abstract] New Accounting Pronouncements and Changes in Accounting Principles [Text Block] Inventory Disclosure [Abstract] Inventory Disclosure [Text Block] Property, Plant and Equipment [Abstract] Property, Plant and Equipment Disclosure [Text Block] Current And Noncurrent Accrued Liabilities [Abstract] Current And Noncurrent Accrued Liabilities [Abstract] Current and noncurrent accrued liabilities. Current And Noncurrent Accrued Liabilities [Text Block] Income Tax Disclosure [Abstract] Income Tax Disclosure [Text Block] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Text Block] Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Stockholders' Equity Note [Abstract] Stockholders' Equity Note Disclosure [Text Block] Earnings Per Share [Abstract] Earnings Per Share [Text Block] Risks and Uncertainties [Abstract] Concentration Risk Disclosure [Text Block] Accounting Policies [Abstract] Basis of Accounting, Policy [Policy Text Block] Consolidation, Policy [Policy Text Block] Reclassification, Policy [Policy Text Block] Schedule of Inventory, Current [Table Text Block] Property, Plant and Equipment, Type [Domain] Note 5 - Property and Equipment (Tables) [Table] Note 5 - Property and Equipment (Tables) [Line Items] Property, Plant and Equipment [Table Text Block] Valuation Allowances and Reserves [Domain] Note 6 - Accrued Liabilities and Other Liabilities - Noncurrent (Tables) [Table] Note 6 - Accrued Liabilities and Other Liabilities - Noncurrent (Tables) [Line Items] Schedule of Accrued Liabilities [Table Text Block] Schedule of Product Warranty Liability [Table Text Block] Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block] Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Schedule of Stockholders Equity [Table Text Block] Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Inventories Inventories [Abstract] Raw materials Finished goods Work in process Reserve for obsolescence Property and Equipment Property and Equipment [Abstract] Machinery and equipment Office furniture and equipment Leasehold improvements Accumulated depreciation Property and Equipment, Depreciation Expense Property and Equipment, Depreciation Expense [Abstract] Depreciation expense Summary of Accrued Liabilities Summary of Accrued Liabilities [Abstract] Payroll and related Deferred revenue and other Warranty reserve Accrued contract costs Customer deposits Income tax liability Total Other liabilities - noncurrent consisted of the following: Other liabilities - noncurrent consisted of the following: [Abstract] Deferred rent Extended warranty Total Changes in Warranty Reserve Changes in Warranty Reserve [Abstract] Beginning balance Warranty provision Ending balance Short-term and Long-term Warranty Reserves Short-term and Long-term Warranty Reserves [Abstract] Short-term warranty reserve Long-term warranty reserve Share-based Compensation Share-based Compensation [Abstract] Outstanding October 1, 2013 Outstanding October 1, 2013 Granted Granted Forfeited/expired Forfeited/expired Exercised Exercised Outstanding June 30, 2014 Outstanding June 30, 2014 Exercisable June 30, 2014 Exercisable June 30, 2014 Summary of Share-based Compensation Expense Summary of Share-based Compensation Expense [Abstract] Income Statement Location [Domain] Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table] Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] Share-based compensation expense Weighted-average Assumptions Weighted-average Assumptions [Abstract] Range [Domain] Note 9 - Share-based Compensation (Details) - Weighted-average Assumptions [Table] Note 9 - Share-based Compensation (Details) - Weighted-average Assumptions [Line Items] Volatility Risk-free interest rate Share based compensation arrangement by share based payment award fair value assumptions forfeiture rate. Forfeiture rate Dividend yield Expected life in years Summary of Changes in Stockholders' Equity Summary of Changes in Stockholders' Equity [Abstract] Equity Component [Domain] Note 10 - Stockholders' Equity (Details) - Summary of Changes in Stockholders' Equity [Table] Note 10 - Stockholders' Equity (Details) - Summary of Changes in Stockholders' Equity [Line Items] Balances, September 30, 2013 (in Shares) Balances, September 30, 2013 Balances, September 30, 2013 Balances, September 30, 2013 Balances, September 30, 2013 Issuance of common stock upon exercise of stock options, net (in Shares) Issuance of common stock upon exercise of stock options, net Issuance of common stock upon exercise of stock options, net Share-based compensation expense Share-based compensation expense Repurchase of common stock (in Shares) Repurchase of common stock Repurchase of common stock Net income Balances, June 30, 2014 (in Shares) Balances, June 30, 2014 Balances, June 30, 2014 Balances, June 30, 2014 Balances, June 30, 2014 Basic and Diluted Earnings Per Share Basic and Diluted Earnings Per Share [Abstract] Antidilutive Securities, Name [Domain] Note 11 - Income (Loss) Per Share (Details) - Basic and Diluted Earnings Per Share [Table] Note 11 - Income (Loss) Per Share (Details) - Basic and Diluted Earnings Per Share [Line Items] Numerator: Numerator: [Abstract] Income (loss) available to common stockholders (in Dollars) Denominator: Denominator: [Abstract] Weighted average common shares outstanding Assumed exercise of dilutive options and warrants Weighted average dilutive shares outstanding Basic income (loss) per common share (in Dollars per share) Diluted income (loss) per common share (in Dollars per share) Potentially dilutive securities outstanding at period end excluded from the diluted computation as the inclusion would have been antidilutive: Potentially dilutive securities outstanding at period end excluded from the diluted computation as the inclusion would have been antidilutive: [Abstract] Antidilutive securities excluded from computation of earnings per share Accrued Bonuses, Current Accrued Sales Commission, Current Deferred Revenue Effective Income Tax Rate Reconciliation, Percent Net Operating Loss Carry Forwards Net Operating Loss Carry Forwards Maximum Number Of Years Net operating loss carry back. Net operating loss carry forward. Note 8 - Commitments and Contingencies (Details) [Table] Note 8 - Commitments and Contingencies (Details) [Line Items] Cash, FDIC Insured Amount Security Account SIPC Insured Amount Cash Portion SIPC Insured Amount Cash, Uninsured Amount Target Bonus Amounts Of Percentage Of Employee Base Salary Minimum TargetBonusAmountsOfPercentageOfEmployeeBaseSalaryMaximum PaymentOfBonusAsPercentage Amount insured by the Securities Investor Protection Corporation. Amount of cash insured by the Securities Investor Protection Corporation Target bonus amounts of percentage of employee base salary minimum. Target bonus amounts of percentage of employee base salary maximum. Plan Name [Domain] Note 9 - Share-based Compensation (Details) [Table] Note 9 - Share-based Compensation (Details) [Line Items] Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized (in Shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in Shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number (in Shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in Shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price (in Dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value (in Dollars per share) Employee Service Share-based Compensation, Tax Benefit from Compensation Expense Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Share Repurchase Program [Domain] Note 10 - Stockholders' Equity (Details) [Table] Note 10 - Stockholders' Equity (Details) [Line Items] Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in Shares) Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per share) End date of warrants exercisable period Stock Repurchase Program, Authorized Amount Stock Repurchased and Retired During Period, Shares (in Shares) Treasury Stock Acquired, Average Cost Per Share (in Dollars per share) Stock Repurchased During Period, Value Class of warrant or rights end date of warrants or rights exercisable. Customer [Domain] MajorCustomer [Domain] Concentration Risk Benchmark [Domain] Concentration Risk Type [Domain] Note 12 - Major Customers (Details) [Table] Note 12 - Major Customers (Details) [Line Items] Number of customers, recorded more than 10% of revenue Concentration Risk, Percentage Minimum percentage of revenue required to be disclosed as major customer Number of customers, recorded more than 10% of accounts receivable Minimum percentage of accounts receivable required to be disclosed as major customer Number of customers attaining specified percentage of revenue. Minimum percentage of revenue require to be disclosed as major customer. Number of customers attaining specified percentage of Accounts receivable. Minimum percentage of accounts receivable require to be disclosed as major customer. Antidilutive Securities [Axis] Property, Plant and Equipment, Type [Axis] Sales [Member] Warranty Reserves [Member] Accounts Receivable [Member] Range [Axis] Scenario, Unspecified [Domain] Maximum [Member] Concentration Risk Benchmark [Axis] Minimum [Member] Plan Name [Axis] Income Statement Location [Axis] Equity Components [Axis] Scenario [Axis] Valuation Allowances and Reserves Type [Axis] Customer Concentration Risk [Member] Common Stock [Member] Share Repurchase Program [Axis] Retained Earnings [Member] Selling, General and Administrative Expenses [Member] Additional Paid-in Capital [Member] Customer [Axis] Warrant [Member] Concentration Risk Type [Axis] Research and Development Expense [Member] Major Customer [Axis] Major Customer [Axis] Change Of Control Severance Benefit Plan [Member] Change of Control Severance Benefit Plan [Member] Cost Of Revenue [Member] Cost of revenue [Member] Customer 1 [Member] Customer 1 [Member] Customer 2 [Member] Customer 2 [Member] Customer 3 [Member] Customer 3 [Member] Customer 4 [Member] Customer 4 [Member] Customer 5 [Member] Customer 5 [Member] Customer 6 [Member] Customer 6 [Member] Depreciation Expense [Member] Depreciation Expense [Member] Held At Supplier Location [Member] Held at Supplier Location [Member] Level 1 [Member] Level 1 [Member] Level 2 [Member] Level 2 [Member] Level 3 [Member] Level 3 [Member] Options [Member] Options [Member] Share Buyback Program [Member] Share Buyback Program [Member] Target Bonus Amounts Maximum [Member] Target Bonus Amounts, Maximum [Member] Target Bonus Amounts, Maximum [Member] Target Bonus Amounts Minimum [Member] Target Bonus Amounts, Minimum [Member] Target Bonus Amounts, Minimum [Member] Two Thousand Five Equity Incentive Plan [Member] 2005 Equity Incentive Plan [Member] Document and Entity Information [Abstract] TargetBonusAmountsOfPercentageOfEmployeeBaseSalaryMinimum MinimumPercentageOfAccountsReceivableRequireToBeDisclosedAsMajorCustomer NetOperatingLossCarryForwardsMaximumNumberOfYears SecurityAccountSIPCInsuredAmount TargetBonusAmountsOfPercentageOfEmployeeBaseSalaryMaximum CurrentAndNoncurrentAccruedLiabilitiesTextBlock MinimumPercentageOfRevenueRequireToBeDisclosedAsMajorCustomer NumberOfCustomersAttainingSpecifiedPercentageOfRevenue CashPortionSIPCInsuredAmount ClassOfWarrantOrRightsEndDateOfWarrantsOrRightsExercisable PaymentOfBonusAsPercentage NumberOfCustomersAttainingSpecifiedPercentageOfAccountsReceivable NetOperatingLossCarryForwards Cash and Cash Equivalents, Period Increase (Decrease) Assets, Current Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Consolidation, Policy [Policy Text Block] Payments to Acquire Property, Plant, and Equipment Effective Income Tax Rate Reconciliation, Percent Operating Expenses Liabilities, Current Inventory Valuation Reserves Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Net Cash Provided by (Used in) Operating Activities Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block] Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Product Warranty Accrual, Warranties Issued Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] Accrued Sales Commission, Current Reclassification, Policy [Policy Text Block] Commitments and Contingencies Disclosure [Text Block] Entity Common Stock, Shares Outstanding Schedule of Accrued Liabilities [Table Text Block] Income Tax Disclosure [Text Block] Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized Assets Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Entity Well-known Seasoned Issuer Stock Repurchase Program, Authorized Amount Entity Registrant Name Concentration Risk Disclosure [Text Block] Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Deferred Revenue Entity Voluntary Filers Class of Warrant or Right, Number of Securities Called by Warrants or Rights Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Treasury Stock Acquired, Average Cost Per Share Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Stock Repurchased During Period, Shares Entity Filer Category Entity Public Float Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Gross Profit Document Fiscal Period Focus Current Fiscal Year End Date Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Property, Plant and Equipment, Gross Liabilities Basis of Presentation and Significant Accounting Policies [Text Block] Property, Plant and Equipment Disclosure [Text Block] Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest Stock Repurchased During Period, Value Class of Warrant or Right, Exercise Price of Warrants or Rights Increase (Decrease) in Inventories Property, Plant and Equipment [Table Text Block] Amendment Flag Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Product Warranty Accrual Accrued Bonuses, Current Increase (Decrease) in Accounts Receivable Inventory Disclosure [Text Block] Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Employee Service Share-based Compensation, Tax Benefit from Compensation Expense Document Period End Date Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Increase (Decrease) in Prepaid Expense Revenues Payments to Acquire Intangible Assets Net Cash Provided by (Used in) Investing Activities Nature of Operations [Text Block] Schedule of Stockholders Equity [Table Text Block] Increase (Decrease) in Accounts Payable Schedule of Product Warranty Liability [Table Text Block] Cash, FDIC Insured Amount Increase (Decrease) in Prepaid Expense and Other Assets Cash, Uninsured Amount Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Entity Central Index Key Net Cash Provided by (Used in) Financing Activities Inventory, Gross Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment New Accounting Pronouncements and Changes in Accounting Principles [Text Block] Earnings Per Share [Text Block] Entity Current Reporting Status Payments for Repurchase of Common Stock Adjustments to Additional Paid in Capital, Share-based Compensation and Exercise of Stock Options Stockholders' Equity Note Disclosure [Text Block] Document Fiscal Year Focus Stock Repurchased and Retired During Period, Shares Liabilities and Equity Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Concentration Risk, Percentage Amendment Description Schedule of Inventory, Current [Table Text Block] Document Type Stockholders' Equity Attributable to Parent Product Warranty Accrual, Payments Basis of Accounting, Policy [Policy Text Block] Statement [Table] Statement [Line Items]