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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] India Agreement [Member] Agreement One [Member] Agreement One [Member] US Agreement [Member] Agreement Two [Member] Agreement Two [Member] Business Acquisition [Line Items] Business Acquisition [Line Items] Acquisition [Abstract] Business Combinations [Abstract] Number of clinical trials Number of Clinical Trials Number of Clinical Trials Number of employees Business Acquisition, Number of Employees Business Acquisition, Number of Employees Square feet of laboratory space Business Acquisition, Square Feet of Laboratory Space Business Acquisition, Square Feet of Laboratory Space Acquisition price, cash Payments to Acquire Businesses, Gross Business Combination, Acquisition Related Costs Business Combination, Acquisition Related Costs Payments of Merger Related Costs, Financing Activities Payments of Merger Related Costs, Financing Activities Notes Receivable, Related Parties Financing Receivable, Net Loan Receivable, Interest Rate, Stated Percentage Loan Receivable, Interest Rate, Stated Percentage Loan Receivable, Interest Rate, Stated Percentage Acquisition price, equity issued Business Combination, Consideration Transferred, Equity Interests Issued and Issuable Potential earn-out Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High Potential earn-out, minimum Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, Low Potential earn-out revenue, minimum Business Combination, Contingent Consideration Arrangements, Revenue to Calculate Contingent Payment, Low Business Combination, Contingent Consideration Arrangements, Revenue to Calculate Contingent Payment, Low Potential earn-out revenue, maximum Business Combination, Contingent Consideration Arrangements, Revenue to Calculate Contingent Payment, High Business Combination, Contingent Consideration Arrangements, Revenue to Calculate Contingent Payment, High Weighted average share price (usd per share) Business Acquisition, Weighted Average Share Price Business Acquisition, Weighted Average Share Price Number of shares issued in acquisition Business Acquisition, Equity Interest Issued or Issuable, Number of Shares Pending Acquisition [Abstract] Business Combination, Description [Abstract] Date of acquisition agreement Business Acquisition, Date of Acquisition Agreement Number of agreements Number Of Acquisition Agreements Number Of Acquisition Agreements Number of employees Number Of Employees Number Of Employees Aggregate ownership percentage Aggregate Ownership Percentage Aggregate Ownership Percentage Aggregate purchase price payable Business Acquisition Equity Of Aggregate Purchase Price Business Acquisition Equity Of Aggregate Purchase Price Cash value of common stock, Shares Cash Value Of Common Stock Shares Cash Value Of Common Stock Shares Public offering common stock period Public Offering Period Public Offering Period Cash payable Business Acquisition Cash Receipt Payment Business Acquisition Cash Receipt Payment. Assume indebtedness Aggregate Indebtedness Number of shares vested Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares Common stock in public offerings description Initial Offering Period Reverse stock split ratio Stockholders' Equity Note, Stock Split, Conversion Ratio Options Outstanding, Number of Shares Outstanding Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Outstanding, beginning balance Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Granted Exercised Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Cancelled or expired Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period Outstanding, ending balance Exercisable Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Options Outstanding, Weighted-Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Outstanding, beginning balance Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Granted Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Exercised Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Cancelled or expired Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price Outstanding, ending balance Exercisable Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Weighted-Average Remaining Contractual Term (in years) Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract] Outstanding Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Exercisable Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Aggregate Intrinsic Value Share Based Compensation Arrangement By Share Based Payment Award Options Aggregate Intrinsic Value [Abstract] Share Based Compensation Arrangement By Share Based Payment Award Options Aggregate Intrinsic Value [Abstract] Outstanding, beginning balance Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Outstanding, ending balance Exercisable Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Schedule of Deferred Compensation Arrangement with Individual, Share-based Payments [Table] Schedule of Deferred Compensation Arrangement with Individual, Share-based Payments [Table] Cost of Revenues [Member] Cost of Sales [Member] General and Administrative [Member] General and Administrative Expense [Member] Sales and Marketing [Member] Selling and Marketing Expense [Member] Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items] Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items] Total stock-based compensation Share-based Compensation 2011 Equity Incentive Plan [Member] Two Thousand And Eleven Plan [Member] Two Thousand And Eleven Plan [Member] 2008 Stock Option Plan [Member] Two Thousand Eight Plan [Member] Two Thousand Eight Plan [Member] Strike Price of $25.00 or More [Member] Strike Price Twenty Five Or More [Member] Strike Price Twenty Five Or More [Member] Strike Price of $12.50 [Member] Strike Price Twelve Point Five Zero [Member] Strike Price Twelve Point Five Zero [Member] Employees [Member] Employees [Member] Employees [Member] Number of equity incentive plans Number Of Share Based Equity Incentive Plan Number Of Share Based Equity Incentive Plan Number of common stock shares authorized for issuance Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Shares of common stock reserved for issuance Deferred Compensation Arrangement with Individual, Common Stock Reserved for Future Issuance Options granted maximum exercisable period Maximum Exercisable Period For Options Granted Maximum Exercisable Period For Options Granted Issuance of shares under Stock Options Plans Share Based Compensation Outside Plan Stock Options Issued Share Based Compensation Outside Plan Stock Options Issued Shares available for future awards Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Restricted stock awarded under Stock Option Plans Stock Issued During Period, Shares, Restricted Stock Award, Gross Stock appreciation rights Stock Appreciation Rights Outstanding Stock Appreciation Rights Outstanding Stock options strike price Share Based Compensation Arrangement By Share Based Payment Award Options Strike Price Share Based Compensation Arrangement By Share Based Payment Award Options Strike Price Exchange options for number of options held with exercise price equal to initial public offering price, Percentage Exchange Options For Number Of Options Held With Exercise Price Equal To Initial Public Offering Price Percentage Exchange Options For Number Of Options Held With Exercise Price Equal To Initial Public Offering Price Percentage Price per share on equity offering Development Stage Entities, Equity Issuance, Per Share Amount Outstanding stock options Initial public offering exercisable lower price range Initial public offering exercisable upper price range Initial offering, options exchanged Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Stock Option Exchange In Period Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Stock Option Exchange In Period Exercise price option Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Approved options issued Share Based Compensation Arrangement By Share Based Payment Award Additional Shares Issued In Period Share Based Compensation Arrangement By Share Based Payment Award Additional Shares Issued In Period Options issued, exercise price Share Based Compensation Arrangement By Share Based Payment Award Issued Weighted Average Price Per Share Share Based Compensation Arrangement By Share Based Payment Award Issued Weighted Average Price Per Share Fair value of common stock Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Exercise Price Unrecognized compensation cost related to non-vested stock options granted Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options Unrecognized compensation cost related to non-vested stock options granted expect to recognize, period (in years) Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Options exchanged Exercise price of options exchanged Stock Issued During Period Shares Stock Options Exercised Price Per Share Stock Issued During Period Shares Stock Options Exercised Price Per Share Fair Value of Warrants Fair Value Disclosures [Text Block] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value Hierarchy [Domain] Fair Value Hierarchy [Domain] Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] Fair Value, Inputs, Level 1 [Member] Significant Other Observable 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Recognition, Policy [Policy Text Block] Accounts receivable Receivables, Policy [Policy Text Block] Deferred revenue Revenue Recognition, Deferred Revenue [Policy Text Block] Fixed assets Asset Retirement Obligations, Policy [Policy Text Block] Loan guarantee and financing fees Debt, Policy [Policy Text Block] Warrant liability Warrant Liability Policy [Policy Text Block] Warrant Liability Policy [Text Block] Income taxes Income Tax, Policy [Policy Text Block] Patents Intangible Assets, Finite-Lived, Policy [Policy Text Block] Research and development Research and Development Expense, Policy [Policy Text Block] Registration payment arrangements Registration Payment Arrangements Policy [Policy Text Block] Registration Payment Arrangements Policy [Text Block] Stock-based compensation Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] Fair value of financial instruments Fair Value of Financial Instruments, Policy [Policy Text Block] Joint venture accounted for under the equity method Equity Method Investments, Policy [Policy Text Block] Subsequent events Subsequent Events, Policy [Policy Text Block] Recent accounting pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Earnings (loss) per share Earnings Per Share, Policy [Policy Text Block] Exercise Price Fair Value Assumption Exercise Price Fair Value Assumption Exercise Price Expected life (years) Fair Value Assumptions, Expected Term Expected volatility Fair Value Assumptions, Expected Volatility Rate Risk-free interest rate Fair Value Assumptions, Risk Free Interest Rate Expected dividend yield Fair Value Assumptions, Expected Dividend Rate Computation of Basic Net Income (Loss) and Diluted Net Loss per Share Data Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Summary of Potentially Dilutive Adjustments to Weighted Average Number of Common Shares Excluded from Calculation Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Fair value of stock prices in computing fair value for warrants exercised Stock Prices Used In Computing The Fair Value Of Warrants Exercised Stock Prices Used In Computing The Fair Value Of Warrants Exercised Fair value of stock prices in computing fair value for warrants issued Assumptions Used In Determining Fair Value Of Warrants Common Stock Price Assumptions Used In Determining Fair Value Of Warrants Common Stock Price Fair value of warrants issue price