AbbVie. Abbvie [Member] AbbVie [Member] Abt 493 Three Daa Regimen. Abt 493 Three Daa Regimen [Member] Abt 493 3-DAA Regimen [Member] Abt 493 Two Daa Regimen. Abt 493 Two Daa Regimen [Member] Abt 493 2-DAA Regimen [Member] Accounting Policies [Abstract] Accounting Policies [Abstract] Accounts Payable and Accrued Liabilities Disclosure [Text Block] Accrued Expenses and Other Long-Term Liabilities Accounts Payable, Current Accounts payable Accounts Payable, Trade, Current Accrued vendor manufacturing Accounts Receivable, Net, Current Accounts receivable Accretion (Amortization) of Discounts and Premiums, Investments Amortization of premium on marketable securities Accrued Income Taxes, Current Income taxes payable Accrued Liabilities, Current Accrued expenses Accrued expenses Accrued Liabilities, Current [Abstract] Accrued expenses: Accrued Preclinical And Clinical Expenses Current Accrued Preclinical And Clinical Expenses Current Accrued preclinical and clinical expenses Accrued Professional Fees, Current Accrued professional fees Accrued Rent, Noncurrent Accrued rent expense Carrying value as of the balance sheet date of obligations incurred through that date and payable for third-party license fees. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). 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Awarded Contract For Research And Development Awarded contract for development, amount Business Description and Basis of Presentation [Text Block] Nature of the Business and Basis of Presentation Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents at end of period Cash and cash equivalents at beginning of period Cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Net increase (decrease) in cash and cash equivalents Changes In Equity And Comprehensive Income Line Items [Line Items] Changes In Equity And Comprehensive Income Line Items [Line Items] Changes In Equity And Comprehensive Income Line Items [Line Items] Class of Stock [Domain] Class of Stock [Domain] Class of Warrant or Right, Number of Securities Called by Warrants or Rights Number of shares issuable upon exercise of the warrants Collaborative Arrangement Disclosure [Text Block] Collaboration Agreements Collaborative Arrangement, Rights and Obligations Collaboration agreement tiered royalty description Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items] Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items] Commercial Paper [Member] Commercial Paper [Member] Commitments and Contingencies Commitments and contingencies (Note 11) Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Text Block] Commitments and Contingencies Commitments And Contingencies [Line Items] Commitments And Contingencies [Line Items] Commitments And Contingencies [Line Items] Commitments And Contingencies [Table] Commitments And Contingencies [Table] Commitments And Contingencies [Table] Common Stock, Capital Shares Reserved for Future Issuance Common stock reserved Common Stock, Par or Stated Value Per Share Common stock, par value Common Stock, Shares Authorized Common stock, shares authorized Common Stock, Shares, Issued Common stock, shares issued Common Stock, Shares, Outstanding Common stock, shares outstanding Common Stock, Value, Issued Common stock; $0.01 par value; 100,000,000 shares authorized at December 31, 2014 and September 30, 2014, respectively; 18,822,045 and 18,803,390 shares issued and 18,613,229 and 18,594,574 shares outstanding at December 31, 2014 and September 30, 2014, respectively Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive income (loss) Period of time over which contract funding will occur. Contract Term Awarded contract for development, contract period Corporate Bond Securities [Member] Corporate Bond Securities [Member] Corporate Debt Securities [Member] Corporate Bonds [Member] Counterparty Name [Axis] Counterparty Name [Axis] Current Fiscal Year End Date Current Fiscal Year End Date Deferred Income Taxes and Tax Credits Deferred income taxes Deferred Revenue Arrangement Type [Axis] Deferred Revenue Arrangement Type [Axis] Deferred Revenue [Domain] Deferred Revenue [Domain] Deferred Tax Assets, Net, Current Deferred tax assets Deferred Tax Assets, Net, Noncurrent Deferred tax assets Depreciation, Depletion and Amortization, Nonproduction Depreciation and amortization expense Derivative, by Nature [Axis] Derivative, by Nature [Axis] Derivative Liability, Fair Value, Gross Liability Fair value of warrants Warrant liability Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net Change in fair value of warrant liability and Series 1 nonconvertible 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Document Fiscal Year Focus Document Fiscal Year Focus Document Period End Date Document Period End Date Document Type Document Type Earnings Per Share [Abstract] Net income (loss) per share: Earnings Per Share, Basic Basic Net income (loss) per share-basic Earnings Per Share, Basic [Abstract] Basic net income (loss) per share: Earnings Per Share, Diluted Diluted Net income (loss) per share-diluted Earnings Per Share, Diluted [Abstract] Diluted net income (loss) per share: Earnings Per Share [Text Block] Net Income (Loss) Per Share Effective Income Tax Rate Reconciliation, Percent Effective income tax rate Eligible Item or Group for Fair Value Option [Axis] Eligible Item or Group for Fair Value Option [Axis] Employee-related Liabilities, Current Accrued payroll and related expenses Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized Aggregate of unrecognized stock-based compensation cost Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Weighted average recognition period Entity Central Index Key Entity Central Index Key Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Entity Filer Category Entity Filer Category Entity Registrant Name Entity Registrant Name Equity [Abstract] Equity [Abstract] Excess Tax Benefit from Share-based Compensation, Financing Activities Income tax benefit from exercise of stock options Excess Tax Benefit from Share-based Compensation, Operating Activities Income tax benefit from exercise of stock options Executive Officer [Member] Executive Officer [Member] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on 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1 Nonconvertible Preferred Stock Period in which outcomes requiring payout upon exercise of warrant is expected to begin. Fair Value Inputs Payout Period Beginning Periods in which payout is expected to occur, beginning Period in which outcomes requiring payout upon exercise of warrant is expected to end. Fair Value Inputs Payout Period Ending Periods in which payout is expected to occur, ending Percentage of likelihood that an outcome would occur that would require a transfer of value upon exercise of warrants, used as an input to measure fair value. Fair Value Inputs Probability Of Payout Probabilities of payout Fair Value, Instruments Classified in Shareholders' Equity Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Rollforward of Aggregate Fair Values of Warrants Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value Hierarchy [Domain] Fair Value Hierarchy [Domain] Amount of transfers of financial instruments classified as an asset or liability between level 1, level 2, and level 3 of the fair value hierarchy. Fair Value Measurements Inter Transfers Between Levels Transfers between Level 1, Level 2 and Level 3 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Period Increase (Decrease) Decrease in fair value Fair value measurement with unobservable inputs reconciliation recurring basis warrants exercised on nonconvertible preferred stocks issued. Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Warrants Exercised On Nonconvertible Preferred Stocks Issued Series 1 nonconvertible preferred stock issued Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value Ending Balance Beginning Balance Fair Value, Option, Eligible Item or Group [Domain] Fair Value, Option, Eligible Item or Group [Domain] Fiscal year twenty fifteen. Fiscal Year Twenty Fifteen [Member] Fiscal Year 2015 [Member] Amount of funding received or receivable, relating to research and development. Funding Related To Research And Development Funding related to research and development Future Milestone Payments Future Milestone Payments Future milestone payments General and Administrative Expense General and administrative General and Administrative Expense [Member] General and Administrative [Member] Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest Net income (loss) before income taxes Income Statement [Abstract] Income Statement [Abstract] Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Income Tax Disclosure [Text Block] Income Taxes Income Taxes Paid, Net Cash paid for income taxes Income Tax Expense (Benefit) Income tax provision Income tax expense Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability Gross deferred tax assets related to net operating loss carry forwards, Decrease Increase (Decrease) in Accounts Payable Accounts payable Increase (Decrease) in Accounts Receivable Accounts receivable Increase (Decrease) in Income Taxes Payable Income taxes payable Increase (Decrease) in Accrued Liabilities Accrued expenses Increase (Decrease) in Deferred Revenue Deferred revenue Increase (Decrease) in Operating Capital [Abstract] Changes in operating assets and liabilities: Increase (Decrease) in Other Noncurrent Liabilities Other long-term liabilities Increase (Decrease) in Prepaid Expense and Other Assets Prepaid expenses and other current assets Increase (Decrease) in Unbilled Receivables Unbilled receivables Initial. Initial [Member] Initial [Member] Interest Expense Interest expense Investment Income, Interest Interest income Investments, Debt and Equity Securities [Abstract] Investments, Debt and Equity Securities [Abstract] Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Marketable Securities Investment Type [Axis] Investment Type [Axis] Investments [Domain] Investments [Domain] Investment Warrants Expiration Date Warrant expiration date Operating Leases, Rent Expense Rent expense Letters of Credit Outstanding, Amount Outstanding letter of credit Liabilities Total liabilities Liabilities and Equity Total liabilities and stockholders' equity Liabilities and Equity [Abstract] Liabilities and Stockholders' Equity Liabilities, Current Total current liabilities Liabilities, Current [Abstract] Current liabilities: Financial and Nonfinancial Liabilities, Fair Value Disclosure Liabilities, Fair Value Disclosure, Total Liabilities, Fair Value Disclosure [Abstract] Liabilities: License Costs License expense Maintenance Costs Maintenance fees Marketable Securities, Current Short-term marketable securities Marketable Securities, Gain (Loss) Gain on sale of marketable securities Description of period of maturity for investments classified as marketable securities. Marketable Securities Maturity Period Maturity period of the marketable securities Marketable Securities, Noncurrent Long-term marketable securities Maximum [Member] Maximum [Member] Milestone payments to be received upon achievement of certain goals. Milestone Payments Expected proceed from milestone payment The maximum amount of payment due under a milestone agreement. Milestone Payments Maximum Amount Company's obligation to pay Milestone payments. Milestone Payments [Member] Milestone Payments [Member] Minimum [Member] Minimum [Member] Money Market Funds [Member] Money Market Fund [Member] National institute of allergy and infectious diseases. National Institute of Allergy and Infectious Diseases [Member] National Institutes of Health, National Institute of Allergy and Infectious Diseases [Member] Net Cash Provided by (Used in) Financing Activities, Continuing Operations Net cash provided by financing activities Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract] Cash flows from financing activities Net Cash Provided by (Used in) Investing Activities, Continuing Operations Net cash provided by investing activities Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract] Cash flows from investing activities Net Cash Provided by (Used in) Operating Activities, Continuing Operations Net cash used in operating activities Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract] Cash flows from operating activities Net Income (Loss) Attributable to Parent Net income (loss) Net income (loss) New Accounting Pronouncements, Policy [Policy Text Block] Recently Issued Accounting Pronouncements Nonoperating Income (Expense) Total other income, net Nonoperating Income (Expense) [Abstract] Other income (expense): Novartis. Novartis [Member] Novartis [Member] Number Of Warrants Exercised During Period Number Of Warrants Exercised During Period Warrant exercised The period upon which an office lease is set to expire. Office Leases Expire Office lease expiration period The amount due under a license agreement each time the intellectual property is provided to a collaborator. One-time License Costs One-time fee Operating Costs and Expenses Total operating expenses Operating Costs and Expenses [Abstract] Operating expenses: Operating Income (Loss) Income (loss) from operations Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Other Accrued Liabilities, Current Accrued other Other Comprehensive Income (Loss), Net of Tax Total other comprehensive income Other Comprehensive Income (Loss), Net of Tax [Abstract] Other comprehensive income loss: Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax Net unrealized gains on marketable securities, net of tax of $3 and $0 Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Tax Net unrealized gains (losses) on marketable securities, tax Other Liabilities Disclosure [Abstract] Other Liabilities Disclosure [Abstract] Other Liabilities, Noncurrent Other long-term liabilities Other long-term liabilities Other Liabilities, Noncurrent [Abstract] Other long-term liabilities: Paid-in-Kind Interest Non-cash interest expense Paritaprevir Three Daa Regimen. Paritaprevir Three Daa Regimen [Member] Paritaprevir 3-DAA Regimen [Member] Paritaprevir Two Daa Regimen. Paritaprevir Two Daa Regimen [Member] Paritaprevir 2-DAA Regimen [Member] Payables and Accruals [Abstract] Payables and Accruals [Abstract] Payments to Acquire Marketable Securities Purchases of marketable securities Payments to Acquire Property, Plant, and Equipment Purchases of property and equipment Percentage of net sales to be allocated. Percentage Of Net Sales To Be Allocated Percentage of net sales to be allocated Plan Name [Axis] Plan Name [Axis] Plan Name [Domain] Plan Name [Domain] Number of preferred shares issued upon exercise of warrants. Preferred Shares Issued During Period Shares Warrant Exercised Warrants issuance The cash outflow associated with the premium paid on marketable securities. Premium On Marketable Securities Premium on marketable securities Prepaid Expense and Other Assets, Current Prepaid expenses and other current assets Proceeds from Maturities, Prepayments and Calls of Available-for-sale Securities Maturities of marketable securities Proceeds from Sale of Available-for-sale Securities Sales of marketable securities Proceeds from Stock Options Exercised Proceeds from exercise of stock options Products and Services [Axis] Products and Services [Axis] Products and Services [Domain] Products and Services [Domain] Property, Plant and Equipment, Net Property and equipment, net Range [Axis] Range [Axis] Range [Domain] Range [Domain] Related Party Transaction, Date Collaboration agreement date Counterparty Name [Domain] Counterparty Name [Domain] Research and Development Arrangement, Contract to Perform for Others, Type [Axis] Research and Development Arrangement, Contract to Perform for Others, Type [Axis] Research and Development Arrangement, Contract to Perform for Others, Type [Domain] Research and Development Arrangement, Contract to Perform for Others, Type [Domain] Research and Development Expense Research and development Research and Development Expense [Member] Research and Development [Member] Restricted Cash and Cash Equivalents, Noncurrent Restricted cash Retained Earnings (Accumulated Deficit) Accumulated deficit Revenue from Grants Revenue from grants Revenue Recognition, Milestone Method, Revenue Recognized Milestone revenue recognized Revenue Recognition, Policy [Policy Text Block] Revenue Recognition Revenue recognized upfront license payments preferred stock sale proceeds research funding and milestone payments revenue. Revenue Recognized Upfront License Payments Preferred Stock Sale Proceeds Research Funding And Milestone Payments Revenue Upfront license payments, preferred stock sale proceeds, research funding, and milestone payments Revenues Revenue Scenario, Unspecified [Domain] Scenario, Unspecified [Domain] Schedule of Accrued Liabilities [Table Text Block] Accrued Expenses (Current) and Other Long-Term Liabilities Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Available-for-sale Securities [Line Items] Schedule of Available-for-sale Securities [Line Items] Schedule of Available-for-sale Securities [Table] Schedule of Available-for-sale Securities [Table] Schedule of Collaborative Arrangements and Non-collaborative Arrangement Transactions [Table] Schedule of Collaborative Arrangements and Non-collaborative Arrangement Transactions [Table] Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Basic and Diluted Net Income (Loss) Per Share Attributable to Common Stockholders Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table] Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table] Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block] Stock-Based Compensation Expense Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Financial Assets and Liabilities that were Subject to Fair Value Measurement on Recurring Basis Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] Stock Option Activity Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Data Used to Determine Value of Stock Option Grants, Presented on Weighted Average Basis Schedule of Stock by Class [Table] Schedule of Stock by Class [Table] Description of type or class of redeemable convertible preferred stock. Convertible redeemable preferred stock possess conversion and redemption features. The stock has redemption features that are outside the control of the issuer. Series One Non Convertible Preferred Stock [Member] Series 1 Nonconvertible Preferred Stock [Member] Share-based Compensation Stock-based compensation expense Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Expected dividend yield Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Expected term (in years) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Expected volatility Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Risk-free interest rate Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized Potential number of common stock shares to be issued Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Common stock shares authorized Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Shares available for future grant Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract] Weighted Average Remaining Contractual Term (In years) Share based compensation arrangement by share based payment award options aggregate intrinsic value. Share Based Compensation Arrangement By Share Based Payment Award Options Aggregate Intrinsic Value [Abstract] Aggregate Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Options exercisable as of end of period Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Options exercisable as of end of period Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Options exercisable as of end of period Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Options exercisable as of end of period Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period Expired Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures Granted Options granted to executives Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Outstanding as of end of period Outstanding as of beginning of period Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Outstanding as of end of period Outstanding as of beginning of period Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Shares Issuable Under Options Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Outstanding as of ending balance Outstanding as of beginning of period Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Outstanding as of end of period Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value Options vested and expected to vest as of end of period Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number Options vested and expected to vest as of end of period Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price Options vested and expected to vest as of end of period Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term Options vested and expected to vest as of end period Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Outstanding Stock Maximum Percentage of potential common stock shares to be issued Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period Shares issued under the ESPP Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Exercised Share-based Compensation Arrangements by Share-based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price Expired Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Granted Short term marketable securities. Short Term Marketable Securities [Member] Short Term Marketable Securities [Member] Significant Accounting Policies [Text Block] Summary of Significant Accounting Policies Class of Stock [Axis] Class of Stock [Axis] Statement [Line Items] Statement [Line Items] Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Scenario [Axis] Scenario [Axis] Statement [Table] Statement [Table] The weighted average grant-date fair value of options granted during the period. Stock Granted During Period, Fair Value, Share-based Compensation Fair value of options at the grant date Stockholders' Equity Attributable to Parent Total stockholders' equity Stockholders' Equity Attributable to Parent [Abstract] Stockholders' equity: Stockholders' Equity Note Disclosure [Text Block] Warrants to Purchase Series 1 Nonconvertible Preferred Stock and Series 1 Nonconvertible Preferred Stock Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Exercised Equity Option [Member] Stock Option [Member] Subsequent Event [Member] Subsequent Event [Member] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Supplemental Cash Flow Information [Abstract] Supplemental disclosure of cash flow information: Temporary Equity, Carrying Amount, Attributable to Parent Series 1 nonconvertible preferred stock Fair value of Series 1 nonconvertible preferred stock Fair value of the Series 1 nonconvertible preferred stock Title of Individual [Axis] Title of Individual [Axis] Relationship to Entity [Domain] Relationship to Entity [Domain] Trading Symbol Trading Symbol Treasury Stock, Shares Treasury stock, shares Treasury Stock, Value Treasury stock, at par value; 208,816 shares at December 31, 2014 and September 30, 2014, respectively 2012 equity incentive plan. Two Thousand Twelve Equity Incentive Plan [Member] 2012 Equity Incentive Plan [Member] Type of Arrangement and Non-arrangement Transactions [Axis] Type of Arrangement and Non-arrangement Transactions [Axis] Unbilled Receivables, Current Unbilled receivables Unrecognized Tax Benefits Unrecognized tax benefits Use of Estimates, Policy [Policy Text Block] Use of Estimates US Government Agencies Debt Securities [Member] U.S. Agency Bonds [Member] Warrant [Member] Warrant Liability [Member] Weighted Average Number Diluted Shares Outstanding Adjustment Dilutive effect of common stock equivalents Weighted Average Number of Shares Outstanding, Diluted Diluted Weighted average common shares outstanding-diluted Weighted Average Number of Shares Outstanding, Basic Basic Weighted average common shares outstanding-basic Weighted Average Number of Shares Outstanding Reconciliation [Abstract] Weighted average common shares outstanding: