Document and Entity Information [Abstract] ASSETS Assets [Abstract] Current assets: Assets, Current [Abstract] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Available-for-sale Securities, Current Fair value Available for sale securities and certificate of deposit Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current Assets, Current, Total Total current assets State research and development credit exchange receivable Nontrade Receivables, Noncurrent Other assets Other Assets, Noncurrent Assets, Total Total LIABILITIES AND STOCKHOLDERS' DEFICIT Liabilities and Equity [Abstract] Current liabilities: Liabilities, Current [Abstract] Accounts payable Accounts Payable, Current Liabilities, Current, Total Total current liabilities Note payable to related party Notes Payable, Related Parties, Noncurrent Liabilities, Total Total liabilities Commitments and contingencies Commitments and Contingencies Stockholders' deficit: Stockholders' Equity Attributable to Parent [Abstract] Preferred Stock, Value, Issued Undesignated preferred stock, $0.01 par value - 10,000,000 shares authorized; no shares issued or outstanding at June 30, 2012 and December 31, 2011 Undesignated preferred stock, par value Preferred Stock, Par or Stated Value Per Share Undesignated preferred stock, shares authorized Preferred Stock, Shares Authorized Undesignated preferred stock, shares issued Preferred Stock, Shares Issued Undesignated preferred stock, shares outstanding Preferred Stock, Shares Outstanding Common Stock, Value, Issued Common Stock, Value, Issued, Ending Balance Common Stock, Value, Issued, Beginning Balance Common Stock, Value, Issued, Total Common stock, $0.01 par value 350,000,000 and 250,000,000 shares authorized at June 30, 2012 and December 31, 2011, respectively; 199,300,833 and 131,522,945 shares issued and outstanding at June 30, 2012 and December 31, 2011, respectively Common stock, par value Common Stock, Par or Stated Value Per Share Common Stock, Shares Authorized Proposal to increase the authorized share Common stock, shares authorized Common Stock, Shares, Issued Common stock, shares issued Common Stock, Shares, Outstanding Common stock, shares outstanding Capital stock authorized Additional paid-in capital Additional Paid in Capital, Common Stock Accumulated other comprehensive income (loss) Accumulated Other Comprehensive Income (Loss), Net of Tax Development Stage Enterprise, Deficit Accumulated During Development Stage Deficit accumulated during the development stage Stockholders' Equity Attributable to Parent, Total Total stockholders' deficit Liabilities and Equity, Total Total Revenue Revenue, Net Operating expenses: Operating Expenses [Abstract] Research and development Research and Development Expense (Excluding Acquired in Process Cost) General and administrative General and Administrative Expense In-process research and development costs Research and Development in Process Goodwill impairment Goodwill, Impairment Loss Goodwill impairment Operating Expenses, Total Total operating expenses Operating Income (Loss) Loss from operations Other income Other Nonoperating Income (Expense) Related Party Transaction, Expenses from Transactions with Related Party Interest expense on note payable to related party Interest Expense, Debt Interest expense on senior convertible notes Investment Income, Interest Interest income Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Loss before provision for income taxes Income Tax Expense (Benefit) Income taxes Preferred Stock Conversions, Inducements Deemed dividend related to beneficial conversion feature of convertible preferred stock Temporary Equity, Accretion to Redemption Value, Adjustment Accretion on redeemable convertible preferred stock Net Income (Loss) Available to Common Stockholders, Basic Net loss applicable to common stockholders Net loss per share applicable to common stockholders - basic and diluted Earnings Per Share, Basic and Diluted Basic and Diluted Weighted Average Number of Shares Outstanding Shares used to compute basic and diluted net loss per share applicable to common stockholders Shares used to compute basic and diluted net loss per share applicable to common stockholders. CASH FLOWS FROM OPERATING ACTIVITIES: Net Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net loss to net cash used in operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Stock-based compensation expense Share-based Compensation Stock Expense for Shares Issued Pursuant to Research Agreement Stock expense for shares issued pursuant to research agreement Stock expense for shares issued pursuant to research agreement. Gain Loss on Sale Abandonment Disposal or Impairment of Property and Equipment (Gain) loss on sale, abandonment/disposal or impairment of property and equipment (Gain) loss on sale, abandonment/disposal or impairment of property and equipment. Accrued Interest on Investments Net of Amortization of Discounts Accrued interest on investments, net of amortization of discounts Accrued interest on investments, net of amortization of discounts. In-process research and development Available-for-sale Securities, Gross Realized Gain (Loss) Loss on available-for-sale securities Available-for-sale Securities, Gross Realized Gain (Loss), Total Other Noncash Income (Expense) Other, net Changes in assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] State Research and Development Credit Exchange Receivable State research and development credit exchange receivable State research and development credit exchange receivable. Increase (Decrease) in Prepaid Expense and Other Assets Prepaid expenses and other current assets Increase (Decrease) in Other Operating Assets Other assets Accounts payable Increase (Decrease) in Accounts Payable Accrued expenses and other current liabilities Increase (Decrease) in Accrued Liabilities and Other Operating Liabilities Other liabilities Increase (Decrease) in Other Operating Liabilities Net Cash Provided by (Used in) Operating Activities Negative cash flow from operation since inception Net cash used in operating activities CASH FLOWS FROM INVESTING ACTIVITIES: Net Cash Provided by (Used in) Investing Activities [Abstract] Payments to Acquire Available-for-sale Securities Purchase of marketable securities Sales and maturities of marketable securities Proceeds from Sale and Maturity of Available-for-sale Securities Payments to Acquire Property, Plant, and Equipment Purchase of property and equipment Proceeds from sale of property and equipment Proceeds from Sale of Property, Plant, and Equipment Net Cash Provided by (Used in) Investing Activities Net cash (used in) provided by investing activities CASH FLOWS FROM FINANCING ACTIVITIES: Net Cash Provided by (Used in) Financing Activities [Abstract] Proceeds from Issuance of Common Stock and Warrants Net proceeds from offering Issuance of common stock and warrants, net of issuance costs Issuance of common stock and warrants. Collection of Convertible Preferred Stock Subscriptions Receivable Collection of Series C convertible preferred stock subscriptions receivable Collection of Series C convertible preferred stock subscriptions receivable. Issuance of Series B convertible preferred stock for cash Proceeds from Issuance of Convertible Preferred Stock Cash received for common stock to be issued Proceeds from Issuance of Common Stock Payments for Repurchase of Common Stock Repurchase of common stock Put Shares Sold to Majority Stockholder Put shares sold to majority stockholder Put shares sold to majority stockholder. Borrowings under lines of credit Proceeds from Long-term Lines of Credit Proceeds from notes receivables Proceeds from Collection of Notes Receivable Borrowings on notes payable to related party Proceeds from Related Party Debt Repayments of Related Party Debt Principal payments on notes payable to principal stockholder Borrowings on notes payable Proceeds from Notes Payable Repayments of Notes Payable Principal payments on notes payable Proceeds from senior convertible notes Proceeds from Convertible Debt Payment of Employment Taxes Related to Vested Restricted Stock Units Payment of employment taxes related to vested restricted stock units Payment of employment taxes related to vested restricted stock units. Net Cash Provided by (Used in) Financing Activities Net cash provided by financing activities Cash and Cash Equivalents, Period Increase (Decrease) NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD CASH AND CASH EQUIVALENTS, END OF PERIOD SUPPLEMENTAL CASH FLOWS DISCLOSURES: Supplemental Cash Flow Information [Abstract] Cash paid for income taxes Income Taxes Paid Interest Paid Interest paid in cash, net of amounts capitalized Issuance of common stock upon conversion of notes payable Debt Conversion, Converted Instrument, Amount Increase in Additional Paid in Capital Resulting from Merger Increase in additional paid-in capital resulting from merger Increase in additional paid-in capital resulting from merger. Issuance of common stock for notes receivable Stock Issued Issuance of Put Option by Stockholder Issuance of put option by stockholder Issuance of put option by stockholder. Put Option Redemption by Stockholder Put option redemption by stockholder Put option redemption by stockholder. Issuance of Convertible Preferred Stock Subscriptions Issuance of Series C convertible preferred stock subscriptions Issuance of Series C convertible preferred stock subscriptions. Issuance Of Redeemable Convertible Preferred Stock Issuance of Series A redeemable convertible preferred stock Issuance of Series A redeemable convertible preferred stock. Conversion of Series A redeemable convertible preferred stock Conversion of Stock, Amount Converted Non-cash construction in progress and property and equipment Construction in Progress Expenditures Incurred but Not yet Paid Cancellation of Principal on Note Payable to Related Party Cancellation of principal on note payable to related party Cancellation of principal on note payable to related party. Description of business and basis of presentation Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Description of business and basis of presentation [Abstract] Available for Sale Securities and Certificate of Deposit Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Available for Sale Securities and Certificate of Deposit [Abstract] Accrued expenses and other current liabilities Accounts Payable and Accrued Liabilities Disclosure [Text Block] Accrued expenses and other current liabilities [Abstract] Accounting for stock-based compensation Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Net loss per common share Earnings Per Share [Text Block] Net loss per common share [Abstract] State Research And Development Credit Exchange Receivable [Text Block] State research and development credit exchange receivable State research and development credit exchange receivable. State research and development credit exchange receivable [Abstract] State research and development credit exchange receivable. Property, Plant and Equipment Disclosure [Text Block] Property and equipment - net Property and equipment - net [Abstract] Common and Preferred Stock [Text Block] Common and preferred stock Common and preferred stock. Common and preferred stock [Abstract] Common and preferred stock. Commitments and contingencies Commitments and Contingencies Disclosure [Text Block] Commitments and contingencies [Abstract] Related-party arrangements Related Party Transactions Disclosure [Text Block] Related-party arrangements [Abstract] Senior convertible notes Long-term Debt [Text Block] Senior convertible notes [Abstract] Income taxes Income Tax Disclosure [Text Block] Income taxes [Abstract] Amendment Flag Current Fiscal Year End Date Document Period End Date Document Type Entity Central Index Key Entity Common Stock, Shares Outstanding Entity Filer Category Entity Registrant Name Document Fiscal Period Focus Document Fiscal Year Focus Condensed Consolidated Balance Sheets[Abstract] Condensed Consolidated Statements of Operations [Abstract] Conversion of Convertible Preferred Stock Amount Converted Conversion of convertible preferred stock amount converted Conversion of convertible preferred stock amount converted. Statement [Table] Class of Stock [Axis] Class of Stock [Domain] Series B Preferred Stock [Member] Series B Preferred Stock [Member] Series C Preferred Stock [Member] Series C Preferred Stock [Member] Statement [Line Items] Supplemental Cash Flow Elements [Abstract] SUPPLEMENTAL CASH FLOWS DISCLOSURE: Condensed Consolidated Statements of Cash Flows [Abstract] Basis Of Presentation [Policy Text Block] Basis of Presentation Basis of Presentation. Fair Value of Financial Instruments, Policy [Policy Text Block] Fair Value of Financial Instruments Recently Issued Accounting Standards [Policy Text Block] Recently Issued Accounting Standards Recently issued accounting standards. Schedule of Long-term Debt Instruments [Table] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Senior Convertible Notes Due 2013 [Member] Senior convertible notes due 2013 [Member] Senior convertible notes due 2013. Senior Convertible Notes Due 2015 [Member] Senior convertible notes due 2015 [Member] Senior convertible notes due 2015. Description of Business and Basis of Presentation (Textual) [Abstract] Description of business and basis of presentation (Textual) [Abstract] Description of business and basis of presentation. Borrowings Under Loan Agreement Borrowings under loan agreement Borrowings under loan agreement. Maturity Period of Cash Equivalents Maturity period of cash equivalents Maturity period of cash equivalents. Maturity Period of Marketable Securities Available for sale securities, maturity period Available for sale securities, maturity period Maturity period of marketable securities. Cash Equivalents, at Carrying Value Cash equivalents Available-for-sale Securities [Table Text Block] Summary of available-for-sale securities classified as current assets Available-for-sale Securities, Current [Abstract] Summary of available-for-sale securities classified as current assets Certificates of Deposit [Member] Certificates of Deposit [Member] Schedule of Investment Income, Reported Amounts, by Category [Table] Schedule of Investment Income, Reported Amounts, by Category [Axis] Investment Income, Categories [Domain] Schedule of Investment Income, Reported Amounts, by Category [Line Items] Accounts Payable and Accrued Liabilities, Current [Abstract] Accrued expenses and other current liabilities Accrued Liabilities, Current Accrued expenses and other current liabilities Accrued expenses and other current liabilities Other Accrued Liabilities, Current Other Construction Payable, Current Construction in progress Interest Payable, Current Accrued interest Accrued Research and Clinical Trial Costs Research and clinical trial costs Research and clinical trial costs accrued. Schedule of Carrying Value and Estimated Fair Value of Senior Notes [Table Text Block] Summary of the carrying values and estimated fair values of the Company's senior convertible notes due Schedule of carrying value and estimated fair value of senior notes. Convertible Notes Payable [Abstract] Summary of the carrying values and estimated fair values of the Company's senior convertible notes due Cash, Cash Equivalents, and Short-term Investments Cash, cash equivalents and marketable securities Long-term Debt, Type [Axis] Gross Unrealized Gain Accrued expenses and other current liabilities Schedule of Accrued Liabilities [Table Text Block] Employee-related Liabilities, Current Salary and related expenses Long-term Debt Carrying value Long-term Debt, Fair Value Estimated fair value Available-for-sale Securities, Amortized Cost Basis Available for sale securities, certificate of deposit Cost Basis Available-for-sale Securities, Gross Unrealized Gains Long-term Debt, Type [Domain] Share-based Compensation, Allocation and Classification in Financial Statements [Abstract] Summarized details of stock-based compensation expense recognized in the accompanying condensed consolidated statements of operations Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Fair value per share of stock options Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized Unrecognized compensation cost related to non vested stock options Stock Options [Member] Stock Options [Member] Summarized details of stock-based compensation expense recognized in the accompanying condensed consolidated statements of operations Schedule of Share-based Compensation, Activity [Table Text Block] Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive loss Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Antidilutive securities Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Share Based Compensation Arrangements By Share Based Payment Award Award Type And Plan Name [Domain] Percentage of Credit Exchange Receivable Percentage of credit exchange receivable Percentage of credit exchange receivable. Stockholders' Equity, Policy [Policy Text Block] Comprehensive Income Other Presentation Allocated Share-based Compensation Expense Stock-based compensation expense Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] Other comprehensive loss: Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax Unrealized holding gain (loss) during the period Ownshare Lending Arrangement Shares Outstanding Companies common stock share outstanding Estimated Amounts Credit Exchange Receivable Estimated amounts receivable under program Estimated amounts credit exchange receivable. Accounting for stock-based compensation [Abstract] Restricted Stock Units (RSUs) [Member] Restricted Stock Units (RSUs) [Member] Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Number of restricted stock units Property and equipment - net Property, Plant and Equipment [Table Text Block] Property, Plant and Equipment, Net, by Type [Abstract] Property and equipment - net Furniture Fixtures and Office Equipment [Member] Furniture, fixtures and office equipment [Member] Furniture, fixtures and office equipment. Computer Equipment and Software [Member] Computer equipment and software [Member] Computer equipment and software. Depreciation and Amortization Expense [Table Text Block] Depreciation and amortization expense Depreciation and amortization expense. Schedule of Property, Plant and Equipment [Table] Property, Plant and Equipment by Type [Axis] Property, Plant and Equipment, Type [Domain] Property, Plant and Equipment [Line Items] Property, Plant and Equipment, Gross Property, Plant and Equipment, Gross Depreciation, Depletion and Amortization [Abstract] Depreciation and amortization expense Depreciation, Depletion and Amortization Depreciation and amortization expense Capital Units, Authorized Capital stock authorized Common Stock Loaned Under Share Lending Agreement, Shares Common stock loaned under share lending agreement, shares Common stock loaned under share lending agreement, shares. Nominal Lending Fee Nominal lending fee Nominal lending fee. Seaside [Member] Seaside [Member] Seaside 88,LP. Mann Group [Member] Mann Group [Member] The Mann Group. Related-Party Arrangements (Textual) [Abstract] Related-party arrangements (Textual) [Abstract] Related-party arrangements. Available Borrowings Under Loan Agreement Borrowings Available borrowings under loan agreement Available borrowings under the loan agreement. Debt Instruments [Abstract] Summary of Senior convertible notes Debt Instrument, Face Amount Principal amount Unamortized Debt Issuance Expense Unaccreted debt issuance expense Debt Instrument, Convertible, Conversion Price Conversion price of shares Principal Amount Per Share Principal amount per share Principal amount per share. Percentage of Repurchase Price Percentage of repurchase price Percentage of repurchase price. Percentage of Redemption Price Percentage of redemption price Percentage of redemption price. Percentage of Conversion Price Equaling Stock Price Percentage of conversion price equaling stock price Percentage of conversion price equaling stock price. Debt Instrument [Line Items] No of convertible shares Debt Instrument, Convertible, Conversion Ratio Income Taxes Recognition [Policy Text Block] Income taxes Recognition Income taxes recognition. Land [Member] Land [Member] Building [Member] Building [Member] Building Improvements [Member] Building Improvements [Member] Machinery and Equipment [Member] Machinery and Equipment [Member] Leasehold Improvements [Member] Leasehold Improvements [Member] Construction in Progress [Member] Construction in Progress [Member] Amortization Period of Lease Hold Improvements Amortization period of lease hold improvements Amortization period of lease hold improvements. Debt Instrument, Interest Rate, Stated Percentage Senior notes, effective interest rate Time Required for Returning Shares After Payment of Entire Debt Time required for returning shares after payment of entire debt Time required for returning shares after payment of entire debt. Common Stock Sale Agreement Number Of Shares To Be Issued As Per Agreement Common stock, shares issued Common stock sale agreement number of shares to be issued as per agreement. Closing Bid Price of Company's Common stock Closing bid price of company's common stock Closing bid price of company's common stock. Schedule of Stock by Class [Table] Class of Stock [Line Items] Schedule of Related Party Transactions, by Related Party [Table] Related Party Transactions, by Related Party [Axis] Related Party [Domain] Related Party Transaction [Line Items] Loan Agreement with Related Party Loan agreement with related party Loan agreement with related party. Debt Instrument, Basis Spread on Variable Rate Interest rate variable rate on borrowings Debt Instrument, Description of Variable Rate Basis Related party debt description of variable rate Related Party Debt [Member] Related Party Debt [Member] Related party debt. Borrowing Rate Borrowing rate Borrowing rate. Related Party Transaction Debt Instrument Prepayment Minimum Cancellation of principal indebtedness related to the common stock purchase agreement completed on June 27, 2012 Amount prepaid for cancellation of indebtedness Related party transaction debt instrument prepayment minimum. Related Party Transaction Prepayment Period Related party transaction prepayment period Related party transaction prepayment period. Related Party Transaction Maximum Limit of Borrowings Limit of borrowings Related party transaction maximum limit of borrowings. Related Party Transaction Principal Amount Outstanding Under Loan Arrangement Principal amount outstanding at June 30, 2012 Principal amount outstanding at December 31, 2011 Related party transaction principal amount outstanding under loan arrangement. Accrued Interest of Related Party Debt Capitalization of accrued and unpaid interest due and payable as of June 27, 2012 Accrued interest of related party debt Accrued interest of related party debt. Debt Instrument Basis Spread on Variable Rate Incase of Default Increased interest rate Debt instrument basis spread on variable rate incase of default. Schedule of Amortization of Debt Issuance Expense [Table Text Block] Summary of amortization of debt issuance expense Schedule of amortization of debt issuance expense. Debt Issuance cost Debt issuance cost. Issuance cost Debt conversion basis for determining conversion price Consecutive trading days Debt conversion basis for determining conversion price. Summary of senior convertible notes Range [Axis] Range [Domain] Maximum [Member] Maximum [Member] Minimum [Member] Minimum [Member] Amortization of Financing Costs and Discounts [Abstract] Summary of amortization of debt issuance expense Amortization of Financing Costs and Discounts Amortization expense Schedule of Long-term Debt Instruments [Table Text Block] Interest Payable Accrued interest Senior Convertible Notes (Textual) [Abstract] Senior Convertible Notes (Textual) [Abstract] Senior convertible notes. Property, Plant and Equipment, Net Property and equipment - net Property and equipment - net Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Less accumulated depreciation and amortization Long-term Debt, Gross Net carrying amount Convertible Notes Payable, Noncurrent Senior convertible notes Senior convertible notes Common share issued and sold, Shares Common stock issued and sold, shares Common share issued and sold, Shares Condensed Consolidated Statements of Comprehensive Loss [Abstract] Net Income (Loss) Attributable to Parent Net loss Net Loss Adjustment of Warrants Granted for Services Fair value adjustment of warrant liability Liabilities Assumed Warrant liability Business [Policy Text Block] Business Business. Warrant Liability [Member] Warrant Liability [Member] Warrant liability. Warrant liability [Abstract] Warrant liability. Warrant Liability [Text Block] Warrant liability Warrant liability. Warrant Liability Warrant liability Warrant liability. Performance Options [Member] Performance Options [Member] Performance options. Fair Value Assumption Risk Free Interest Rate Fair Value Assumption Risk Free Interest Rate Risk Free Interest Rate Fair value assumption risk free interest rate. Fair Value Input Discount for Lack of Marketability Discount for lack of marketability Fair value inputs discount for lack of marketability. Warrant Liability (Textual) [Abstract] Warrant liability. Warrant Liability (Textual) [Abstract] Warrant Liability (Additional Textual) [Abstract] Warrant Liability (Additional Textual) [Abstract] Warrant liability. Derivative Liability, Fair Value, Net Fair Value of Warrant Liability Fair Value Assumption Expected Dividend Rate Fair Value Assumption Expected Dividend Rate Fair value assumption expected dividend rate. Fair Value Assumption Expected Volatility Rate Fair value assumption expected volatility rate Fair value assumption expected volatility rate. Fair Value Assumptions, Expected Term Fair value assumption contractual term Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition Weighted average vesting period for unrecognized compensation cost Property, Plant and Equipment, Useful Life Estimated Useful Life Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax Cumulative translation (loss) gain Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax [Abstract] Unrealized gain (loss) on investments: Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Net of Tax Less: reclassification adjustment for gains (losses) included in net loss Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax Net unrealized (loss) gain on investments Unrealized Gain (Loss) on Derivatives Fair value of forward purchase contract Changes in fair value of the Company's Level 3 financial assets and liabilities Fair Value, Instruments Classified in Shareholders' Equity Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Forward Purchase Contracts [Member] Forward Purchase Contracts [Member] Forward purchase contracts. Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract] Changes in fair value of Level 3 financial assets and liabilities Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Value of Instruments Classified in Shareholders' Equity Ending Balance Beginning Balance Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Instruments Classified in Shareholders' Equity, Transfers Into Level 3 Issuance Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Instruments Classified in Shareholders' Equity, Gain (Loss) Included in Other Comprehensive Income (Loss) Adjustments to fair value included in other income Employee Service Share Based Compensation Nonvested Awards Aggregate Compensation Cost Not Yet Recognized Not Considered Probable of Achievement Unrecognized expenses milestones not considered probable of achievement Employee service share based compensation nonvested awards aggregate compensation cost not yet recognized not considered probable of achievement. Accounting for Stock Based Compensation (Textual) [Abstract] Accounting for Stock Based Compensation (Textual) [Abstract] Accounting for stock based compensation. Net Loss Per Common Share (Textual) [Abstract] Net Loss Per Common Share (Textual) [Abstract] Net loss per common share. Fair Value Instruments Classified In Shareholders Equity Measured On Recurring Basis Unobservable Input Reconciliation [Table] Financial Instrument [Axis] Transfers And Servicing Of Financial Instruments Types Of Financial Instruments [Domain] Fair Value Instruments Classified In Shareholders Equity Measured On Recurring Basis Unobservable Input Reconciliation [Line Items] Own-share Lending Arrangement, Shares, Issued Shares loaned under the share lending arrangement State Research and Development Credit Exchange Receivable (Textual) [Abstract] State Research and Development Credit Exchange Receivable (Textual) [Abstract] State research and development credit exchange receivable. Property and Equipment Net (Textual) [Abstract] Property and equipment - net. Property and Equipment Net (Textual) [Abstract] Common Stock Issued to by Party [Axis] Common stock issued to by party. Common Stock Issued to by Party [Domain] Common stock issued to by party. Underwriters [Member] Underwriters [Member] Underwriters. Units Sold under Public Offer Underwritten Number of Unit Sold in an Underwritten public offering Units sold under public offer underwritten. Units Sold under Public Offer Underwritten Composition Description Units sold composition Description Units sold under public offer underwritten composition description. Units Sold Warrant Portion Convertible into Common Stock Common stock warrant to purchase of Share Warrant to purchase of a share of common stock Units sold warrant portion convertible into common stock. Units Sold by Underwriting Price Purchased Price of the units by underwriters Units sold by underwriting price. Public [Member] Public [Member] Public. Class of Warrant or Right, Number of Securities Called by Warrants or Rights Warrants Issued Number of warrants are exercisable Class of Warrant or Right, Exercise Price of Warrants or Rights Rate at which warrants are exercisable Warrants Exercisable Expiration Period Duration for Expiration of warrants Warrants exercisable expiration period. Restricted Stock Agreed to be Purchased by Lender Company purchased restricted shares of common stock Restricted stock agreed to be purchased by lender. Forward Contract Indexed to Issuer's Equity, Shares Authorized shares under common stock purchase agreement Derivative Fair Value Liability Shares Issuable to Lender Number of Shares that recorded the portion of the derivative instrument representing equity Derivative fair value liability shares issuable to lender. Forward Contract Indexed to Issuer's Equity, Settlement Alternatives, Shares, at Fair Value Fair value of the forward purchase contract Assets, Fair Value Adjustment Other Expenses Equity Component [Member] Equity component. Equity Component [Member] Other Than Equity [Member] Other than equity. Other Than Equity [Member] Lender Name [Axis] Line of Credit Facility, Lender [Domain] Forward Contract Indexed to Issuer's Equity, Type [Axis] Forward Contract Indexed to Issuer's Equity, Type [Domain] Warrant Equity Component [Member] Warrant Equity Component [Member] Warrant equity component. Warrant Liability Component [Member] Warrant Liability Component [Member] Warrant liability component. Units Sold Warrants Exercised Warrants representing common stock Units sold warrants exercised. Liabilities, Fair Value Adjustment Fair Value Adjustment (loss) of Warrant Liability Forward Contract Indexed to Issuer's Equity [Table] Forward Contract Indexed to Issuer's Equity [Line Items] Issuance of Common Stock and Warrants Gross Value Underwritten public offering Issuance of common stock and warrants gross value. Number of Months Advances Outstanding Number of Months Advances Outstanding Number of months advances outstanding. Common and Preferred Stock (Textual) [Abstract] Common and Preferred Stock (Textual) [Abstract] Common and preferred stock. Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures Fair value of restricted stock units Award Type [Axis] Interest Paid, Capitalized Capitalization of interest on note payable to related party Estimated Litigation Liability Accrued litigation settlement liability Share Based Payments Vesting Percentage of Unvested Awards Vesting percentage of unvest Share based payments vesting percentage of unvested awards. Share Based Payments Percentage of Unvested Awards Share based payments percentage of unvested awards. Percentage of unvest Closing Bid Price of Common Stock Closing bid price of Common Stock Closing bid price of common stock. Commitments and Contingencies (Additional Textual) [Abstract] Commitments and contingencies. Commitments and Contingencies (Additional Textual) [Abstract] Principal Amount Outstanding Under Loan Arrangement Sequent to Completion of Common Stock Purchase Agreement [Abstract] Principal amount outstanding under loan arrangement sequent to completion of common stock purchase agreement Principal amount outstanding under loan arrangement sequent to completion of common stock purchase agreement. Schedule of Principal Amount Outstanding Under Loan Arrangement [Table Text Block] Schedule of principal amount outstanding under loan arrangement. Schedule of principal amount outstanding under loan arrangement Subsequent Events [Text Block] Subsequent events Subsequent Events [Abstract] Percentage of Shares Vest upon Achievement of Certain Performance Milestones Percentage of shares vest upon achievement of certain performance milestones. Percentage of shares vest upon achievement of certain performance milestones Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures Number of restricted stock options Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures Fair value of restricted stock options Derivative Actions [Member] Derivative actions. Derivative Actions [Member] Securities Action [Member] Securities action. Securities Action [Member] Required Payment to Class Members and Attorneys Required payment to class members and attorneys. Required payment to class members and attorneys Number of Common Stock to be Issued to Class Members and Attorneys Number of common stock to be issued to class members and attorneys Number of common stock to be issued to class members and attorneys. Additional Number of Common Stock to be Issued to Class Members and Attorneys Additional number of common stock to be issued to class members and attorneys Additional Number of common stock to be issued to class members and attorneys. Required Payment by Insurer to Plaintiff Required payment by insurer to plaintiff. Required payment by insurer to plaintiff Additional Number of Common Stock to be Issued to Plaintiff Attorneys Additional Number of common stock to be issued to Plaintiff attorneys. Additional Number of common stock to be issued to Plaintiff attorneys Loss Contingency Settlement Agreement Cash Consideration Loss Contingency settlement agreement cash consideration. Loss Contingency settlement agreement cash consideration Loss Contingency Settlement Agreement Stock Consideration Loss contingency settlement agreement stock consideration. Loss contingency settlement agreement stock consideration Loss Contingency Settlement Agreement Stock Issuable Loss contingency settlement agreement stock issuable. Loss contingency settlement agreement stock issuable Stock Price Used to Forecast Future Liability Stock price used to forecast future liability. Stock price used to forecast future liability Range of Final Judgment Range of final judgment. Range of final judgment Securities and Derivative Lawsuits [Member] Securities and derivative lawsuits. Securities and Derivative Lawsuits [Member] Litigation Case [Axis] Litigation Case Type [Domain] Subsequent Event (Textual) [Abstract] Subsequent event Subsequent Event (Textual) [Abstract] Loss Contingencies [Table] Loss Contingencies [Line Items] Reclassification of Forward Purchase Contract to Additional Paid in Capital Reclassification of forward purchase contract to additional paid-in capital Reclassification of forward purchase contract to additional paid in capital. Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Instruments Classified in Shareholders' Equity, Settlements Transfers to additional paid-in-capital Available for Sale Securities and Certificate of Deposit (Textual) [Abstract] Available for sale securities and certificate of deposit. Available for Sale Securities and Certificate of Deposit (Textual) [Abstract] Options granted with vesting terms Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross Derivative Portion Balance in Current Assets Derivative portion balance in current assets. Derivative Portion Balance in Current Assets Aggregate Adjustment of the Forward Purchase Contract to Fair Value Fair value of Non-Equity Portion Aggregate adjustment of the forward purchase contract to fair value. Increase Decrease in Fair Value Recognized in Other Income change in fair value recongized in other income Increase decrease in fair value recognized in other income. Derivatives Fair Value Liability Shares Issuable to Lender Derivatives fair value liability shares issuable to lender. Number of Shares that recorded the portion of the derivative instrument representing outside of equity Available-for-sale Securities, Fair Value Disclosure Fair value Forward Purchase Contract Contribution to Additional Paid in Capital Forward purchase contract contribution to additional paid-in capital Forward purchase contract contribution to additional paid in capital. Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions [Table Text Block] Assumptions used to calculate fair of employee stock options Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract] Assumptions used to calculate fair of employee stock options Performance Based Plan [Member] Performance-based [Member] Performance based plan. Time Based [Member] Time-based [Member] Time based. 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, Fair Value Assumptions, Expected Term Expected lives Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Volatility Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Dividends Plan Name [Axis] Plan Name [Domain] Fair Value of Units Issued Valuation of non-equity portion of forward contract Fair value of units issued.