Document Documentand Entity Information [Abstract] Document Documentand Entity Information [Abstract] Document Documentand Entity Information [Abstract] Document Documentand Entity Information [Abstract] Entities [Table] Entities [Table] Entities [Table] Legal Entity [Axis] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] Entity [Domain] Document Information [Line Items] Document Information [Line Items] Document Information [Line Items] Document Type Document Type Document Type Amendment Flag Amendment Flag Amendment Flag Document Period End Date Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Document Fiscal Period Focus Trading Symbol Trading Symbol Trading Symbol Entity Registrant Name Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Current Fiscal Year End Date Entity Well-Known Seasoned Issuer Entity Well-known Seasoned Issuer Entity Current Reporting Status Entity Current Reporting Status Entity Voluntary Filers Entity Voluntary Filers Entity Filer Category Entity Filer Category Entity Filer Category Entity Common Stock Shares Outstanding Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Entity Public Float Entity Public Float Statement Of Financial Position [Abstract] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Statement [Table] Statement [Table] Statement [Table] Statement [Line Items] Statement [Line Items] Statement [Line Items] Assets [Abstract] Assets Assets Assets Current [Abstract] Current assets: Current assets Cash and Cash Equivalents At Carrying Value Cash and cash equivalents Cash and cash equivalents Cash and cash equivalents at beginning of period Cash and cash equivalents at end of period Marketable Securities Marketable securities Inventory, Finished Goods, Net Of Reserves Finished goods inventory, net Income Taxes Receivable Income taxes refundable Income taxes refundable Prepaid Expense and Other Assets Current Prepaid expenses and other current assets Prepaid expenses and other current assets Assets Current Total current assets Total current assets Property, Plant and Equipment, Net Property, plant and equipment, net Property, plant and equipment, net Total property, plant and equipment, net Other Assets Other assets Assets Total assets Total assets Liabilities and Stockholders Equity [Abstract] Liabilities and Stockholders Equity Liabilities Current [Abstract] Current liabilities: Current liabilities Accounts Payable Current Accounts payable Accounts payable Accrued Liabilities Current Accrued expenses Accrued expenses Total Other Liabilities, Current Other current liabilities Liabilities Current Total current liabilities Total current liabilities Other Liabilities Other liabilities Liabilities Total liabilities Commitments and Contingencies Commitments and contingencies (Note 10) Commitments and contingencies (Note 9) Stockholders Equity [Abstract] Stockholders Equity: Common Stock Value Common stock: $.01 par value per shares; 100,000 shares authorized, 45,867 and 45,320 shares issued and outstanding in 2012 and 2011, respectively Common stock - $.01 par value; 100,000 shares authorized; 45,864 and 45,320 shares issued and outstanding at September 30, 2012 and December 31, 2011 Additional Paid In Capital Common Stock Additional paid-in capital Additional paid-in capital Retained Earnings Accumulated Deficit Accumulated deficit Accumulated deficit Accumulated Other Comprehensive Income (Loss), Net Of Tax Accumulated other comprehensive income (loss) Stockholders Equity Total stockholders' equity Total stockholders' equity Beginning Balance Ending Balance Liabilities and Stockholders Equity Total liabilities and stockholders' equity Total liabilities and stockholders' equity Common Stock Par Or Stated Value Per Share Common stock, par value Common stock, par value Common Stock Shares Authorized Common stock, shares authorized Common stock, shares authorized Common Stock Shares Issued Common stock, shares issued Common stock, shares issued Common Stock Shares Outstanding Common stock, shares outstanding Common stock, shares outstanding Income Statement [Abstract] Income Statement [Abstract] Income Statement [Abstract] Revenues [Abstract] Revenues: Revenues Program Fee Revenue Program fee revenue Program fee revenue Program fee revenue Reimbursement Revenue Collaboration revenue Revenue Recognition Milestone Method Revenue Recognized Milestone revenue Milestone revenue Total Revenues Total revenues Total revenues Revenues Costs and Expenses [Abstract] Operating expenses: Operating expenses Research and Development Expense Research and development Research and development Selling General and Administrative Expense Selling, general and administrative Marketing, general and administrative Costs and Expenses Total operating expenses Total operating expenses Income (Loss) From Operations Loss from operations Loss from operations Operating income (loss) Operating loss Income (loss) from operations Other Operating Income (Expense), Net Non-operating income (expense): Investment Income, Interest Interest income Other Nonoperating Expense Other income (expense) Other expense Other expense, net Other Nonoperating Income (Expense) Other income (expense) Other income (expense), net Total other income (expense), net Total other income (expense) Income Loss From Continuing Operations Before Income Taxes Minority Interest and Income Loss From Equity Method Investments Income (loss) before income tax Income (loss) before income taxes Income Tax Expense (Benefit) Provision for income taxes Income tax expense Provision for income taxes Net Income (Loss) Net income (loss) Net income (loss) for the year Net income (loss) Net loss Net income (loss) Other Comprehensive Income (Loss), Net Of Tax [Abstract] Other comprehensive income (loss): Unrealized Gain (Loss) On Securities Unrealized gains (losses) on securities Other Comprehensive Income (Loss), Net Of Tax Other comprehensive income (loss) Total other comprehensive income (loss) Comprehensive Income (Loss), Net Of Tax, Attributable To Parent Total comprehensive income Comprehensive income (loss) Earnings Per Share [Abstract] Earnings (loss) per share: Earnings (loss) per share Earnings Per Share, Basic Basic Basic earnings (loss) per common share Income (loss) per common share Basic Basic earnings (loss) per share Earnings Per Share, Diluted Diluted Diluted earnings (loss) per common share Diluted earnings (loss) per share Weighted Average Number Of Shares Outstanding Diluted Disclosure Items [Abstract] Denominator: Weighted average shares outstanding: Weighted Average Number Of Shares Outstanding Basic Basic Basic Weighted average number of shares outstanding Weighted Average Number Of Diluted Shares Outstanding Diluted Diluted Weighted average number of shares outstanding Statement Of Stockholders Equity [Abstract] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Equity Components [Axis] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Equity Component [Domain] Common Stock [Member] Common Stock Additional Paid In Capital [Member] Additional Paid-in Capital Retained Earnings [Member] Accumulated Deficit Accumulated Other Comprehensive Income (Loss) [Member] Accumulated Other Comprehensive Income (Loss) Award Type [Axis] Award Type [Axis] Award Type [Axis] Award Type [Domain] Award Type [Domain] Award Type [Domain] Cashless [Member] Cashless Restricted Stock Units (Rsus) [Member] Restricted Stock Units (RSUs) Option Non Cash Exercise One [Member] Cashless exercise of stock options Option Non Cash Exercise1 Option Non Cash Exercise1 [Member] Shares Outstanding Beginning Balance (in shares) Beginning Balance (in shares) Ending Balance (in shares) Adjustments To Additional Paid In Capital Share Based Compensation Requisite Service Period Recognition Shares Share-based compensation (in shares) Share-based compensation (in shares) Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition, Shares Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value Share-based compensation Share-based compensation Stock Issued During Period Shares Restricted Stock Award Net Of Forfeitures Net distribution of common stock pursuant to restricted stock unit award plan (in shares) Net distribution of common stock pursuant to restricted stock unit award plan (in shares) Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures Net distribution of common stock pursuant to restricted stock unit award plan Net distribution of common stock pursuant to restricted stock unit award plan Shares Withheld For Tax Shares Common shares withheld for withholding taxes (in shares) Shares withheld for tax, shares Common shares withheld for withholding taxes (in shares) Shares Withheld For Tax Value Common shares withheld for withholding taxes Shares withheld for tax, value Common shares withheld for withholding taxes Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Exercises In Period Issuance of common stock for exercise of stock options (in shares) Number of options, exercised Shares issued in cashless exercise of stock option Number of options, exercised Number of options, exercised Stock Issued During Period Value Stock Options Exercised Issuance of common stock for exercise of stock options Issuance of common stock for exercise of stock options Stock Issued During Period, Shares, Other Issuance of common stock for cashless exercise of options and payroll taxes (in shares) Stock Issued During Period, Shares, Other Stock Issued During Period Shares Stock Warrants Exercised Issuance of common stock for exercise of warrants (in shares) Stock Issued During Period Shares Stock Warrants Exercised Stock Issued During Period Shares Stock Warrants Exercised Stock Issued During Period Value Stock Warrants Exercised Issuance of common stock for exercise of warrants Stock Issued During Period Value Stock Warrants Exercised Value stock issued during the period as a result of the exercise of warrants. Stock Issued During Period, Value, Other Issuance of common stock for cashless exercise of options and payroll taxes Stock Issued During Period, Value, Other Statement Of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Net Cash Provided By Used In Operating Activities [Abstract] Cash Flows from Operating Activities: Cash flows from operating activities: Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities [Abstract] Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities: Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: Depreciation, Depletion and Amortization, Nonproduction Depreciation and amortization Share Based Compensation Share-based compensation Non-cash share-based compensation expense Gain (Loss) On Disposition Of Assets Loss on asset disposals Increase Decrease In Operating Capital [Abstract] Changes in assets and liabilities Changes in assets and liabilities Increase (Decrease) In Inventories Inventories, net Increase Decrease In Receivables Collaboration revenue receivable Collaboration revenue receivable Collaboration revenue receivable Increase Decrease In Income Taxes Receivable Income taxes refundable Income taxes refundable Income taxes refundable Increase Decrease In Prepaid Deferred Expense and Other Assets Prepaid expenses and other current assets Prepaid expenses and other current assets Prepaid expenses and other current assets Increase Decrease In Accounts Payable Accounts payable Accounts payable Increase Decrease In Accrued Liabilities Accrued expenses Accrued expenses Increase Decrease In Deferred Revenue Deferred program fee revenue Deferred program fee revenue Increase (Decrease) In Other Operating Assets and Liabilities, Net Other assets and liabilities Net Cash Provided By Used In Operating Activities Net cash (used in) provided by operating activities Net cash (used in) provided by operating activities Net cash provided by (used in) operating activities Net Cash Provided By (Used In) Investing Activities [Abstract] Cash Flows from Investing Activities: Payments To Acquire Marketable Securities Purchases of marketable securities Proceeds From Sale and Maturity Of Marketable Securities Proceeds from sale of marketable securities Payments To Acquire Property, Plant, and Equipment Additions to property, plant and equipment Cash flows used in investing activities - purchase of property and equipment Cash flows used in investing activities - purchase of property and equipment Net Cash Provided By (Used In) Investing Activities Net cash used in investing activities Net Cash Provided By Used In Financing Activities [Abstract] Cash Flows from Financing Activities: Cash flows from financing activities: Proceeds From Stock Options Exercised Proceeds from exercise of stock options Exercise of stock options Proceeds From Other Equity Proceeds from distribution of restricted stock units Distribution of restricted stock units Proceeds From Warrant Exercises Proceeds from warrant exercise Net proceeds from warrant exercise Payments Related To Tax Withholding For Share-Based Compensation Payments related to tax withholding for share-based compensation Statutory minimum withholding taxes paid on the distribution of common stock pursuant to restricted stock unit plan and exercise of stock options Statutory minimum withholding taxes paid on the distribution of common stock pursuant to restricted stock unit plan and exercise of stock options Statutory minimum withholding taxes paid on the distribution of common stock pursuant to restricted stock unit plan and exercise of stock options Net Cash Provided By Used In Financing Activities Net cash used in finance activities Net cash (used in) provided by financing activities Net cash (used in) provided by financing activities Cash and Cash Equivalents Period Increase Decrease Net increase (decrease) in cash and cash equivalents Net (decrease) increase in cash and cash equivalents Cash Paid During Period For [Abstract] Cash paid during the year for: Cash paid during the period: Cash Paid During Period For [Abstract] Interest Paid Interest Interest Income Taxes Paid Income taxes, net of refunds Income taxes Scenario [Axis] Scenario [Axis] Scenario [Axis] Scenario, Unspecified [Domain] Scenario, Unspecified [Domain] Scenario, Unspecified [Domain] Restricted Stock Unit [Member] Restricted Stock Unit Restricted Stock Unit [Member] Stock Options [Member] Stock Option Warrant [Member] Common stock warrants Warrant Cash Flow Noncash Investing and Financing Activities Disclosure [Abstract] Supplemental Disclosure of Noncash Financing Activities: Supplemental Disclosure of Noncash Financing Activities: Equity Based Employee Compensation Granted Shares Equity based employee compensation granted Equity based employee compensation granted Equity Based Employee Compensation Granted, Shares Common Stock Withheld Shares Common stock withheld in exercise costs in shares Common stock withheld in exercise costs in shares Common Stock Withheld , Shares Equity Issuance Costs Withheld Common stock withheld in exercise costs Common stock withheld in exercise costs Equity Issuance Costs Withheld Shares Withheld To Satisfy Employees Tax Withholding Shares Witholding of exercise cost in shares Witholding of exercise cost in shares Shares Withheld to Satisfy Employees Tax Withholding, Shares Supplemental Tax Withholding Minimum statutory withholding payroll taxes withheld Minimum statutory withholding payroll taxes withheld Supplemental Tax Withholding Common Stock Issued Shares Common Stock issued upon exercise Common Stock issued upon exercise Common Stock Issued, Shares Description Of Business Disclosure [Abstract] Description Of Business Disclosure [Abstract] Business Description and Accounting Policies [Text Block] DESCRIPTION OF BUSINESS BASIS OF PRESENTATION Accounting Policies [Abstract] Accounting Policies [Abstract] Significant Accounting Policies [Text Block] SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Significant Accounting Policies [Text Block] Research and Development Disclosure [Abstract] Research and Development Disclosure [Abstract] Research and Development Disclosure [Text Block] LICENSE, DEVELOPMENT, AND COMMERCIALIZATION AGREEMENT RESEARCH AND DEVELOPMENT Research And Development Disclosure. Property, Plant and Equipment [Abstract] Property, Plant and Equipment [Abstract] Property, Plant and Equipment Disclosure [Text Block] PROPERTY, PLANT AND EQUIPMENT Payables and Accruals [Abstract] Payables and Accruals [Abstract] Accounts Payable and Accrued Liabilities Disclosure [Text Block] ACCRUED EXPENSES ACCRUED EXPENSES Stockholders Equity Note [Abstract] Stockholders Equity Note [Abstract] Stockholders Equity Note Disclosure Text Block COMMON STOCK WARRANTS Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Income Tax Disclosure Text Block INCOME TAXES Disclosure Of Compensation Related Costs, Share-Based Payments [Abstract] Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Disclosure Of Compensation Related Costs Share Based Payments Text Block EMPLOYEE BENEFIT PLANS EMPLOYEE BENEFIT PLANS Commitments and Contingencies Disclosure [Abstract] Commitments And Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure Text Block COMMITMENTS AND CONTINGENCIES Quarterly Financial Information Disclosure [Abstract] Quarterly Financial Information Disclosure [Abstract] Quarterly Financial Information [Text Block] SUPPLEMENTARY DATA (UNAUDITED) Basis Of Presentation and Significant Accounting Policies [Text Block] Basis of Presentation Basis of Presentation and Significant Accounting Policies [Text Block] Use Of Estimates, Policy [Policy Text Block] Use of Estimates Use of Estimates in Consolidated Financial Statements Cash and Cash Equivalents, Policy [Policy Text Block] Cash and Cash Equivalents Fair Value Of Financial Instruments, Policy [Policy Text Block] Fair Value of Other Financial Instruments Fair Value of Financial Instruments, Policy [Policy Text Block] Marketable Securities, Policy [Policy Text Block] Marketable Securities Concentration Risk, Credit Risk, Policy [Policy Text Block] Concentration of Credit Risk Concentration of Credit Risk Inventory, Policy [Policy Text Block] Inventories Property, Plant and Equipment, Policy [Policy Text Block] Property, Plant and Equipment Revenue Recognition, Policy [Policy Text Block] Revenue Recognition Revenue Recognition, Deferred Program Fee Revenue and Collaboration Revenue Shipping and Handling Cost, Policy [Policy Text Block] Shipping and Handling Costs Research and Development Expense, Policy [Policy Text Block] Research and Development Activities Income Tax, Policy [Policy Text Block] Income Taxes Comprehensive Income, Policy [Policy Text Block] Comprehensive Income Comprehensive Income, Policy [Policy Text Block] Earnings Per Share, Policy [Policy Text Block] Earnings Per Share ("EPS") Share-Based Compensation, Option and Incentive Plans Policy [Policy Text Block] Share-Based Compensation New Accounting Pronouncements, Policy [Policy Text Block] Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Organization, Consolidation and Presentation Of Financial Statements [Abstract] DESCRIPTION OF BUSINESS AND SUMMARY OF ACCOUNTING POLICIES Organization, Consolidation and Presentation of Financial Statements [Abstract] Property, Plant and Equipment [Table Text Block] Estimated lives of major classification of depreciable assets Property, Plant and Equipment [Table Text Block] Schedule Of Calculation Of Numerator and Denominator In Earnings Per Share [Table Text Block] Computation of diluted earnings (loss) per share Schedule of Calculation of Numerator and Denominator in Earnings Per Share [Table Text Block] Schedule Of Employee Service Share-Based Compensation, Allocation Of Recognized Period Costs [Table Text Block] Non-Cash Share-Based Compensation Expense Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block] Schedule Of Property Plant and Equipment Net Carrying Value [Table Text Block] PROPERTY, PLANT AND EQUIPMENT Schedule Of Property Plant and Equipment Net Carrying Value [Table Text Block] Tablular disclosure of gross value of each categories of plant property and equitment of long-lived, physical assets, that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software, less accumulated depreciation and amortization and net value of long live property plant and equipment. Schedule Of Accrued Liabilities Table [Text Block] Accrued Expenses Accrued Expenses Investments Marketable Securities [Abstract] Investments Marketable Securities [Abstract] Marketable Securities [Table Text Block] Marketable Securities Marketable Securities [Table Text Block] Available-For-Sale Securities, Continuous Unrealized Loss Position, Fair Value [Table Text Block] Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value Fair Value, Assets Measured On Recurring Basis [Table Text Block] Fair Value, Assets Measured on Recurring Basis Fair Value, Assets Measured on Recurring Basis [Table Text Block] Schedule Of Effective Income Tax Rate Reconciliation Table Text Block Provision for Income Taxes Schedule Of Deferred Tax Assets Table [Text Block] Components Of Deferred Tax Assets Schedule Of Deferred Tax Assets Summary Of Information About Non Vested Stock Options Disclosure [Abstract] Summary Of Information About Non Vested Stock Options Disclosure [Abstract] Schedule Of Share Based Compensation Stock Options Activity [Table Text Block] Schedule of Share-based Compensation, Stock Options, Activity Schedule Of Nonvested Share Activity Table Text Block Schedule of Nonvested Share Activity Schedule Of Share Based Payment Award Stock Options Valuation Assumptions [Table Text Block] Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions Schedule Of Share Based Compensation Restricted Stock Units Award Activity [Table Text Block] Schedule of Share-based Compensation, Restricted Stock Units Award Activity Selected Quarterly Financial Information [Abstract] Selected Quarterly Financial Information [Abstract] Schedule Of Quarterly Financial Information [Table Text Block] Selected unaudited quarterly consolidated financial data Selected unaudited quarterly consolidated financial data Disclosure Estimated Lives Of Major Classification Of Depreciable Assets [Abstract] Disclosure - Estimated Lives Of Major Classification Of Depreciable Assets [Abstract] Disclosure Estimated Lives Of Major Classification Of Depreciable Assets [Abstract] Disclosure Estimated Lives Of Major Classification Of Depreciable Assets [Abstract] Schedule Of Property, Plant and Equipment [Table] Schedule of Property, Plant and Equipment [Table] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Domain] Property, Plant and Equipment, Type [Domain] Building and Building Improvements [Member] Building and Building Improvements Building and improvements Land Improvements [Member] Land Improvements Machinery and Equipment [Member] Machinery and equipment Machinery and equipment Scientific Equipment [Member] Scientific equipment Scientific equipment Computer Hardware and Software [Member] Computer hardware and software Computer hardware and software Office Equipment [Member] Office equipment Office equipment Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum [Member] Minimum Maximum [Member] Maximum Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Property, Plant and Equipment, Estimated Useful Lives Property, plant and equipment, estimated useful lives Property, Plant and Equipment, Estimated Useful Lives Organization Consolidation and Presentation Of Financial Statements [Table] Organization Consolidation and Presentation Of Financial Statements [Table] Deferred Revenue Arrangement Type [Axis] Deferred Revenue Arrangement Type [Axis] Deferred Revenue Arrangement Type [Axis] Deferred Revenue Arrangement Type [Domain] Deferred Revenue Arrangement Type [Domain] Deferred Revenue Arrangement Type [Domain] Up Front Payment Arrangement [Member] Up-front Payments Arrangement License Fees [Member] License Fees License Fees Organization Consolidation and Presentation Of Financial Statements [Line Items] Organization Consolidation and Presentation Of Financial Statements [Line Items] Deferred Revenue, Revenue Recognized Revenue recognized from program fee Deferred Revenue, Revenue Recognized Proceeds From Non Refundable Upfront Fees For Research and Development Arrangment Contract To Perform For Other Proceeds from non refundable upfront fees for research and development arrangment contract to perform for other Proceeds from non refundable upfront fees for research and development arrangment contract to perform for other Proceeds From Non Refundable Upfront Fees For Research and Development Arrangment Contract To Perform For Other Proceeds From License Fees Received Fees relating to Pfizers exercise of its option Proceeds from License Fees Received Research and Development Arrangement, Contract To Perform For Others, Compensation Earned Recognized revenue from collaboration Research and Development Arrangement, Contract to Perform for Others, Compensation Earned Proceedds From Research and Development Contingentconsideration Payment Proceedds from research and development contingent consideration payment Proceedds from research and development contingent consideration payment Proceedds From Research and Development Contingentconsideration Payment Research and Development Arrangement Contract To Perform For Others Expenses Recivable Accrued research and development arrangement contract to perform for others expenses recivable Research and Development Arrangement Contract To Perform For Others Expenses Recivable Research and Development Arrangement Contract To Perform For Others Expenses Recivable Valuation Allowance, Deferred Tax Asset, Change In Amount Deferred income tax asset valuation allowance Increased the valuation allowance Antidilutive Securities Excluded From Computation Of Earnings Per Share, Amount Total excluded dilutive shares Excluded potentially dilutive securities: Inventory, Net Inventory, net Inventory, Net Disclosure Computation Of Basic and Diluted Earnings Loss Per Share [Abstract] Disclosure - Computation of Basic and Diluted Earnings (Loss) Per Share [Abstract] Disclosure - Computation of Basic and Diluted Earnings (Loss) Per Share [Abstract] Disclosure - Computation of Basic and Diluted Earnings (Loss) Per Share [Abstract] 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 Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Rsus [Member] Restricted Stock Units Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Earning Per Share Basic Numerator [Abstract] Basic income (loss) per share computation Numerator: Basic income (loss) per share computation Numerator: Earning Per Share, Basic Numerator [Abstract] Weighted Average Number Of Shares Outstanding Basic [Abstract] Denominator: Denominator: Weighted Average Number Of Shares Issued Basic Common shares Common shares Weighted Average Number Of Shares, Restricted Stock Vested RSUs Vested RSUs RSUs Earnings Per Share Diluted Numerator [Abstract] Diluted earnings (loss) per share Diluted earnings (loss) per share Earnings Per Share Diluted Numerator [Abstract] Incremental Common Shares Attributable To Share-Based Payment Arrangements Stock options Common shares Stock options Incremental Common Shares Attributable To Call Options and Warrants Common stock warrants Common stock warrants Common stock warrants Common Stock Issuable [Abstract] Common Stock Issuable [Abstract] Disclosure Non Cash Share Based Compensation Expense [Abstract] Disclosure - Non-Cash Share-Based Compensation Expense [Abstract] Disclosure - Non-Cash Share-Based Compensation Expense [Abstract] Disclosure - Non-Cash Share-Based Compensation Expense [Abstract] 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 Arrangements by Share-based Payment Award [Table] Nature Of Expense [Axis] Nature of Expense [Axis] Nature of Expense [Axis] Interim Period Costs Not Allocable [Domain] Interim Period, Costs Not Allocable [Domain] Interim Period, Costs Not Allocable [Domain] Research and Development Expense [Member] Research and development Research and development General and Administrative Expense [Member] General and administrative General and administrative 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 [Line Items] Disclosure License Development and Commercialization Agreement Additional Information [Abstract] Disclosure - License Development and Commercialization Agreement - Additional Information [Abstract] Disclosure License Development and Commercialization Agreement Additional Information [Abstract] License Development and Commercialization Agreement [Table] License Development and Commercialization Agreement [Table] Contingent Consideration By Type [Axis] Contingent Consideration by Type [Axis] Contingent Consideration Type [Domain] Contingent Consideration Type [Domain] Pivotal Phase Iii Clinical Study [Member] Pivotal Phase III Clinical Study Pivotal Phase Iii Clinical Study [Member] Fdas Approval [Member] Fda's Approval License Development and Commercialization Agreement [Line Items] License Development and Commercialization Agreement [Line Items] Proceeds From Collaborators Aggregate payments of from Pfizer Proceeds from Collaborators Proceeds From Reimbursment Of Research and Development Expenses Arrangment Contract To Perform For Other Proceeds from non refundable upfront fees for research and development arrangment contract to perform for other Proceeds From Reimbursment Of Research and Development Expenses Arrangment Contract To Perform For Other Proceeds From Reimbursment Of Research and Development Expenses Arrangment Contract To Perform For Other Research and Development Contingent Consideration Payment Licencnse Fees Research and development contingent consideration payment, license fees Research and Development Contingent Consideration Payment Licencnse Fees Research and Development Contingent Consideration Payment Licencnse Fees Research and Development Contingent Consideration Payment Additional Upfront Fees Research and development contingent consideration payment, additional upfront fees Research and Development Contingent Consideration Payment Additional Upfront Fees Research and Development Contingent Consideration Payment Additional Upfront Fees Research and Development Contingent Consideration Payment Sales Milestone Payment Description Research and development contingent consideration payment, sales milestone payment ,description Research and Development Contingent Consideration Payment Sales Milestone Payment Description Research and Development Contingent Consideration Payment Sales Milestone Payment Description Percentage Of Royalty Percentage of royalty Percentage Of Royalty Percentage Of Royalty Percentage Of Royalty Deduct To Settle Third Party Claim Percentage of royalty deducted to settle third party claim Percentage Of Royalty Deduct To Settle Third Party Claim Percentage Of Royalty Deduct To Settle Third Party Claim Percentage Of Royalty Of Royalty Payable Minimum Percentage of royalty of royalty , payable minimum Percentage Of Royalty Of Royalty Payable Minimum Percentage Of Royalty Of Royalty Payable Minimum Prior Written Notice Period To Termination Of Contractual Arrangements Prior written notice period to termination of contractual arrangements Prior Written Notice Period To Termination Of Contractual Arrangements Prior Written Notice Period To Termination Of Contractual Arrangements Period Of Commercially Launched Of Product After Regulatory Approval Period of commercially launched of product after regulatory approval Period Of Commercially Launched Of Product After Regulatory Approval Period Of Commercially Launched Of Product After Regulatory Approval Property, Plant and Equipment, Other Types [Member] Other personal property Other personal property Property, Plant and Equipment, Gross Property, plant and equipment, gross Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Less accumulated depreciation and amortization Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Disclosure Property Plant and Equipment Additional Information [Abstract] Disclosure - Property Plant and Equipment - Additional Information [Abstract] Disclosure Property Plant and Equipment Additional Information [Abstract] Depreciation, Depletion and Amortization Depreciation and amortization expense Depreciation, Depletion and Amortization Disclosure Accrued Expenses [Abstract] Disclosure - Accrued Expenses [Abstract] Disclosure - Accrued Expenses [Abstract] Disclosure - Accrued Expenses [Abstract] Accounts Payable and Accrued Liabilities [Table] Accounts Payable and Accrued Liabilities [Table] Accounts Payable and Accrued Liabilities [Table] Accounts Payable and Accrued Liabilities [Table] Accounts Payable and Accrued Liabilities [Line Items] Accounts Payable and Accrued Liabilities [Line Items] Accounts Payable and Accrued Liabilities [Line Items] Accounts Payable and Accrued Liabilities [Line Items] Accrued Professional Fees Current Professional services Professional services Other Accrued Liabilities Current Other fees and services Other fees and services Employee Related Liabilities Current Payroll, payroll taxes and benefits Payroll, payroll taxes and benefits Accrued Other Professional Fees Current Clinical and regulatory services Clinical and regulatory services Accrued Other Professional Fees, Current Accrued Other Contract Manufacture Services Current Contract manufacture services Accrued Other Contract Manufacture Services Current. Accrual For Taxes Other Than Income Taxes Current Property taxes Property taxes Other Accrued Taxes Current Franchise taxes Franchise taxes Other Accrued Taxes Current Investment In Marketable Securities [Abstract] Investment In Marketable Securities [Abstract] Marketable Securities [Table] Marketable Securities [Table] Defined Benefit Plan, Asset Categories [Axis] Defined Benefit Plan, Asset Categories [Axis] Plan Asset Categories [Domain] Plan Asset Categories [Domain] Exchange Traded Funds [Member] Exchange-traded funds Pooled Investment Fund [Member] Pooled investment fund Investment In Marketable Securities [Line Items] Investment In Marketable Securities [Line Items] Marketable Securities [Abstract] Marketable securities: Marketable securities: Available-For-Sale Securities, Debt Maturities, Next Twelve Months, Fair Value Corporate bonds - maturing within one year Available-For-Sale Securities, Debt Maturities, Year Two Through Five, Fair Value Corporate bonds - maturing after one through four years Corporate bonds - maturing after one through four years Marketable Securities Current Total marketable securities Total marketable securities FairValue Available-For-Sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract] Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract] Available For Sale Securities Continuous Unrealized Loss Position Fair Value [Table] Available For Sale Securities Continuous Unrealized Loss Position Fair Value [Table] Major Types Of Debt and Equity Securities [Axis] Major Types of Debt and Equity Securities [Axis] Major Types Of Debt and Equity Securities [Domain] Major Types of Debt and Equity Securities [Domain] Corporate Bonds [Member] Corporate Bonds Available For Sale Securities Continuous Unrealized Loss Position Fair Value [Line Items] Available For Sale Securities Continuous Unrealized Loss Position Fair Value [Line Items] Available-For-Sale Securities, Amortized Cost Basis Cost Available-for-sale Securities, Amortized Cost Basis Available-For-Sale Securities, Gross Unrealized Gains Gross Unrealized Gains Available-for-sale Securities, Gross Unrealized Gains Available-For-Sale Securities, Gross Unrealized Losses Gross Unrealized Losses Available-for-sale Securities, Gross Unrealized Losses Assets Measured At Fair Value Or Disclosed At Fair Value On Recurring Basis [Abstract] Assets Measured At Fair Value Or Disclosed At Fair Value On Recurring Basis [Abstract] Assets Measured At Fair Value Or Disclosed At Fair Value On Recurring Basis [Table] Assets Measured At Fair Value Or Disclosed At Fair Value On Recurring Basis [Table] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value, Inputs, Level 1 [Member] Fair Value, Inputs, Level 1 Fair Value, Inputs, Level 2 [Member] Fair Value, Inputs, Level 2 Fair Value, Inputs, Level 3 [Member] Fair Value, Inputs, Level 3 Business Segments [Axis] Business Segments [Axis] Segment [Domain] Segment [Domain] Corporate [Member] Corporate bonds Assets Measured At Fair Value Or Disclosed At Fair Value On Recurring Basis [Line Items] Assets Measured At Fair Value Or Disclosed At Fair Value On Recurring Basis [Line Items] Investment In Marketable Securities - Additional Information (Detail) [Abstract] Investment In Marketable Securities - Additional Information (Detail) [Abstract] Investment In Marketable Securities [Table] Investment In Marketable Securities [Table] Disclosure Common Stock Warrants Additional Information [Abstract] Disclosure - Common Stock Warrants - Additional Information [Abstract] Disclosure - Common Stock Warrants - Additional Information [Abstract] Disclosure - Common Stock Warrants - Additional Information [Abstract] Class Of Warrant Or Right [Table] Class of Warrant or Right [Table] Class of Warrant or Right [Table] Class Of Warrant Or Right [Line Items] Class of Warrant or Right [Line Items] Class of Warrant or Right [Line Items] Class Of Warrant Or Right, Outstanding Common stock warrant exercisable outstanding, shares Common stock warrant exercisable outstanding, shares Exercise Price Of Warrants Common stock warrant exercise price Common stock warrant exercise price Exercise Price Of Warrants Class Of Warrant Or Right Expiration Date Common stock Warrant expiration date Common stock Warrant expiration date Class of Warrant or Right, Expiration Date Provision For Income Taxes [Table] Provision For Income Taxes [Table] Provision For Income Taxes [Line Items] Provision For Income Taxes [Line Items] Income Tax Reconciliation, Income Tax Expense (Benefit), At Federal Statutory Income Tax Rate Tax (benefit) at U.S. statutory 34% tax rate Income Tax Reconciliation, State and Local Income Taxes State taxes (benefit), net of federal effect Income Tax Reconciliation, Tax Credits, Research Research and development tax credits Income Tax Reconciliation, Nondeductible Expense, Share-Based Compensation Cost Share-based compensation Income Tax Reconciliation, Other Reconciling Items Other Income Tax Reconciliation, Change In Deferred Tax Assets Valuation Allowance Change in valuation allowance Income Tax Disclosure [Table] Income Tax Disclosure [Table] Income Tax Authority [Axis] Income Tax Authority [Axis] Income Tax Authority [Domain] Income Tax Authority [Domain] Domestic Tax Authority [Member] Federal Federal Income Tax Disclosure [Line Items] Income Tax Disclosure [Line Items] Federal Income Tax Expense (Benefit), Continuing Operations Federal income tax benefits Operating Loss Carryforwards Federal NOLs Effective Income Tax Rate Reconciliation, At Federal Statutory Income Tax Rate U.S. statutory tax rate Operating Loss Carry Forwards Expiration Year NOL expiration year Operating Loss Carry Forwards Expiration Year Components Of Deferred Tax Assets [Abstract] Components of Deferred Tax Assets [Abstract] Components Of Deferred Tax Assets [Table] Components Of Deferred Tax Assets [Table] Components Of Deferred Tax Assets [Line Items] Components Of Deferred Tax Assets [Line Items] Deferred Tax Assets, Net [Abstract] Deferred tax assets: Deferred Tax Assets, Operating Loss Carryforwards, Domestic - Federal Deferred Tax Assets, Operating Loss Carryforwards, State and Local - State Deferred Tax Assets, In Process Research and Development Research and development tax credits Deferred Tax Assets, Deferred Income Deferred program fee revenue Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-Based Compensation Cost Share-based compensation Deferred Tax Assets, Other Other, net Deferred Tax Assets, Gross Total deferred taxes Deferred Tax Assets, Valuation Allowance Valuation allowance Deferred Tax Assets, Net Net deferred tax assets Employee Benefit Plans Disclosure [Table] Employee Benefit Plans Disclosure [Table] Plan Name [Axis] Plan Name [Axis] Plan Name [Domain] Plan Name [Domain] Four Zero One K and Profit Sharing Plan [Member] 401(k) and Profit-Sharing Plan Stock Option [Member] Stock Option Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event [Member] Employee Benefit Plans Disclosure [Line Items] Employee Benefit Plans Disclosure [Line Items] Maximum Basic Contribution Percentage Per Employee On Annual Earnings Maximum basic contribution percentage per employee on annual earnings Maximum basic contribution percentage per employee on annual earnings Description Of Defined Contribution Pension and Other Postretirement Plans Description of contribution under the plan Description Of Contribution For Profit Sharing Plan Description of contribution for Profit-Sharing Plan Description of contribution for profit-sharing plan Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Vested and Expected To Vest, Outstanding, Aggregate Intrinsic Value Aggregate intrinsic value of the option awards vested Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Exercises In Period, Total Intrinsic Value Aggregate intrinsic value of option awards exercised Employee Service Share-Based Compensation, Nonvested Awards, Total Compensation Cost Not Yet Recognized Unrecognized compensation cost related to the unvested option awards Share Based Compensation Share Based Payment Awards Cashless Exercises Common stock exercised in cashless exercise features Share based compensation share based payment awards cashless exercises Taxes Withheld On Issuance Of Stock Based Awards Withholding tax obligations Withholding tax obligations Taxes withheld on issuance of stock-based awards. Stock Or Unit Option Plan Expense Exercise costs Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Granted In Period Total Fair Value Fair value of the RSU grants Share based compensation arrangement by share based payment award equity instruments other than options granted in period total fair value Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 Employee service share based compensation nonvested awards period Employee service share based compensation nonvested awards period Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Nonvested, Weighted Average Grant Date Fair Value Weighted average fair value of a RSU outstanding Outstanding beginning, Weighted Average Fair Value Outstanding ending, Weighted Average Fair Value Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Vested In Period Vested Number of vested shares distributed to holders Vested (Number of RSUs) Vested Shares Paid For Tax Withholding For Share Based Compensation Shares withheld to satisfy statutory minimum withholding tax obligations Shares withheld upon elections made to exchange RSUs Statutory Minimum Payroll Taxes Statutory minimum payroll taxes Statutory Minimum Payroll Taxes Restricted Stock Units Sale Price Restricted stock units sale price Restricted Stock Units Sale Price Restricted Stock Units Exchanged In Satisfaction Of Withholding Tax Obligations Restricted stock units exchanged in satisfaction of withholding tax obligations Restricted Stock Units Exchanged In Satisfaction Of Withholding Tax Obligations Number Of Shares Issued On Cashless Exercises Number of shares issued on cashless exercises Number Of Shares Issued On Cashless Exercises Disclosure Stock Option Award Activity [Abstract] Disclosure - Stock Option Award Activity [Abstract] Disclosure - Stock Option Award Activity [Abstract] Disclosure - Stock Option Award Activity [Abstract] Stock Option Plan [Member] Stock Option Plan Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number Number of options outstanding, beginning Number of options outstanding, beginning Number of options outstanding, ending Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Number of options, granted Number of options, granted Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period Number of options, forfeited or expired Number of options, forfeited or expired Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number Number of options exercisable Number of options exercisable Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price Weighted average exercise price, beginning Weighted average exercise price, beginning Weighted average exercise price, ending Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price Weighted average exercise price, granted Weighted average exercise price, granted Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price Weighted average exercise price, exercised Weighted average exercise price, exercised Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price Weighted average exercise price, forfeited or expired Weighted average exercise price, forfeited or expired Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price Weighted average exercise price, options exercisable Weighted average exercise price, options exercisable Summary Of Information About Non Vested Stock Options Disclosure [Table] Summary Of Information About Non Vested Stock Options Disclosure [Table] Options Not Exercisable [Member] Options Not Exercisable Summary Of Information About Non Vested Stock Options Disclosure [Line Items] Summary Of Information About Non Vested Stock Options Disclosure [Line Items] Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Nonvested, Number Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Outstanding, beginning Outstanding, ending Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Grants In Period Granted Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Granted (Number of RSUs) Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Forfeited In Period Forfeited or expired Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Forfeited or expired (Number of RSUs) Forfeited or expired Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Grants In Period, Weighted Average Grant Date Fair Value Granted, Weighted Average Fair Value Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Vested In Period, Weighted Average Grant Date Fair Value Vested, Weighted Average Fair Value Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Forfeitures, Weighted Average Grant Date Fair Value Forfeited, Weighted Average Fair Value Disclosure Assumptions Used In Black Scholes Model To Determine Fair Value For Stock Option Awards Granted [Abstract] Disclosure - Assumptions Used in Black-Scholes Model to Determine Fair Value for Stock Option Awards Granted [Abstract] Disclosure - Assumptions Used in Black-Scholes Model to Determine Fair Value for Stock Option Awards Granted [Abstract] Disclosure - Assumptions Used in Black-Scholes Model to Determine Fair Value for Stock Option Awards Granted [Abstract] Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate Expected dividend yield Dividend yield Share-Based Compensation Arrangement By Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Minimum Average risk-free interest rate, minimum Share-Based Compensation Arrangement By Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Maximum Average risk-free interest rate, maximum Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Average expected volatility Average volatility Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term 1 Expected term (years) Expected holding period Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value Weighted average grant date fair value Weighted average grant date fair value Vested Restricted Stock Units [Member] Vested Restricted Stock Units (RSUs) Vested Restricted Stock Units Share Based Compensation Arrangement By Share Based Payment Award Equity Instrument Other Than Options Distributed In Period Share Based Compensation Arrangement By Share Based Payment Award Equity Instrument Other Than Options Distributed In Period Share Based Compensation Arrangement By Share Based Payment Award Equity Instrument Other Than Options Distributed In Period Distributed Disclosure Commitments and Contingencies Additional Information [Abstract] Disclosure Commitments And Contingencies Additional Information [Abstract] Disclosure Commitments And Contingencies Additional Information [Abstract] Disclosure Commitments And Contingencies Additional Information [Abstract] Commitments and Contingencies Disclosure [Table] Commitments and Contingencies Disclosure [Table] Commitments and Contingencies Disclosure [Table] Commitments and Contingencies Disclosure [Table] Restricted Stock Unit Award Plan [Member] Restricted Stock Unit Award Plan Restricted Stock Unit Award Plan. Elections [Member] Elections Other Elections [Member] Other Elections Location [Axis] Location [Axis] Location [Domain] Location [Domain] Pennsylvania State [Member] Pennsylvania State New Jersey State [Member] New Jersey State California State [Member] California State Title Of Individual [Axis] Title of Individual [Axis] Title Of Individual With Relationship To Entity [Domain] Title of Individual with Relationship to Entity [Domain] Financial Advisor [Member] Financial Advisor Commitments and Contingencies Disclosure [Line Items] Commitments and Contingencies Disclosure [Line Items] Commitments and Contingencies Disclosure [Line Items] Commitments and Contingencies Disclosure [Line Items] Loss Contingency, Settlement Agreement, Consideration Loss contingency settlement agreement consideration Escrow Deposit Escrow deposit Number Of Lawsuits Filed Number of lawsuits filed Number Of Lawsuits Filed Number of lawsuits filed Number Of Lawsuits Served Number of lawsuits served Number Of Lawsuits Served Number of lawsuits served. Loss Contingency, Number Of Plaintiffs Number of plaintiffs served in a single complaint Warrants and Rights Outstanding Amount of warrants issued in Unit Offering Adjustments Related To Tax Withholding For Share-Based Compensation Amount of shares withheld in satisfaction tax obligations Percentage Of Fee Assumed On Exercise Of Warrants In Unit Offering Percentage of fee assumed on exercise of warrants in unit offering Percentage Of Fee Assumed On Exercise Of warrants In Unit Offering Schedule Of Quarterly Financial Information [Table] Schedule Of Quarterly Financial Information [Table] Schedule Of Quarterly Financial Information [Line Items] Schedule Of Quarterly Financial Information [Line Items] Operating Expenses Operating Expenses Operating Expenses Investments Marketable Securities Table [Text Block] Investments Marketable Securities Table [Text Block] Investments Marketable Securities Table Text Block Operating Leases, Rent Expense, Net Leases administrative office space Palatine Lllinois [Member] Palatine Lllinois Description of Lessor Leasing Arrangements, Operating Leases Lease expiring date