Inventory Disclosure [Abstract] Inventory Inventory Disclosure [Text Block] Balance Sheet Parenthetical [Abstract] Balance Sheet Parenthetical [Abstract] Common stock, par value Common Stock, Par or Stated Value Per Share Common stock, shares authorized Common Stock, Shares Authorized Common stock, shares issued Common Stock, Shares, Issued Common stock, shares outstanding Common Stock, Shares, Outstanding Organization, Consolidation and Presentation of Financial Statements [Abstract] Schedule of Restructuring and Related Costs [Table] Schedule of Restructuring and Related Costs [Table] Restructuring Type [Axis] Restructuring Type [Axis] Restructuring Plan [Domain] Restructuring Plan [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Restructuring Reserve Disclosures [Line Items] Restructuring Cost and Reserve [Line Items] Restructuring and related cost, expected expense reduction Restructuring and Related Cost, Expected Expense Reduction Anticipated amount of expense reduction associated with exit or disposal activities pursuant to an authorized plan. Restructuring and related cost, expected cost Restructuring and Related Cost, Expected Cost Restructuring and related cost, expected cash outlays Restructuring and Related Cost, Expected Cash Outlays Amount expected to be recognized in expenses for the specified restructuring cost to result in cash outlays. Procurement Contract [Abstract] Procurement Contract [Abstract] Procurement Contract [Abstract] Number of courses delivered Government Contract, number of courses delivered Courses of Arestvyr delivered to the Strategic Stockpile Contract receivable collected, delivered product Contract Receivable Collected, Delivered Products Amount billed to customers under long-term contracts or programs and collected for delivered product. Excludes amounts due that have been withheld because of retainage provisions in a contract. Earnings Per Share [Abstract] Schedule of earnings per share, basic and diluted Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of antidilutive securities excluded from computation of earnings per share Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Commitments and Contingencies Disclosure [Abstract] Loss Contingencies [Table] Loss Contingencies [Table] Litigation Case [Axis] Litigation Case [Axis] Litigation Case Type [Domain] Litigation Case [Domain] License Agreement litigation License Agreement Litigation [Member] License Agreement Litigation [Member] Litigation Status [Axis] Litigation Status [Axis] Litigation Status [Domain] Litigation Status [Domain] Pending litigation Pending Litigation [Member] Loss Contingency Nature [Axis] Loss Contingency Nature [Axis] Loss Contingency, Nature [Domain] Loss Contingency, Nature [Domain] Surety bond Surety Bond [Member] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Accrued liabilities Accrued Liabilities [Member] Other assets Other Assets [Member] Loss Contingencies [Line Items] Loss Contingencies [Line Items] Percentage of net profits from sales after net profit threshold Percentage of Net Profits from Sales After Net Profit Milestone Resulting From Award Damages The Delaware Court of Chancery awarded to PharmAthene an equitable payment stream or equitable lien consisting of fify percent of the net profits that the Company achieves from sales of ST-246 after the Company secures $40 million in net profits, for ten years following the first commercial sale. Net profit threshold Net Profit Milestone The Delaware Court of Chancery awarded to PharmAthene an equitable payment stream or equitable lien consisting of fify percent of the net profits that the Company achieves from sales of ST-246 after the Company secures $40 million in net profits, for ten years following the first commercial sale Equitable payment stream following first commercial sale, duration Duration of Equitable Payment Stream Following First Commercial Sale The Delaware Court of Chancery awarded to PharmAthene an equitable payment stream or equitable lien consisting of fify percent of the net profits that the Company achieves from sales of ST-246 after the Company secures $40 million in net profits, for ten years following the first commercial sale. Percentage of litigation costs awarded Litigation Costs Awarded, Percentage The Delaware Court of Chancery awarded PharmAthene one-third of its reasonable attorneys' fees and expert witness expenses. Plaintiff attorneys' fee and expenses Amount Plaintiff May Recover The Delaware Court of Chancery awarded PharmAthene one-third of its reasonable attorneys' fees and expert witness expenses. Accrued liabilities, current Loss Contingency Accrual Payment to post collateral for surety bond Payment to Post Collateral for Surety Bond Payment to post collateral for surety bond. Statement of Financial Position [Abstract] ASSETS Assets [Abstract] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Accounts receivable Accounts Receivable, Net, Current Contract receivable, due in next twelve months Contract Receivable, Due in Next Twelve Months Inventory Inventory, Net Prepaid expense and other assets, current Prepaid Expense and Other Assets, Current Deferred tax assets Deferred Tax Assets, Net of Valuation Allowance, Current Total current assets Assets, Current Property, plant and equipment, net Property, Plant and Equipment, Net Contract receivable Contract Receivable Deferred costs Deferred Costs, Noncurrent Goodwill Goodwill Other assets Other Assets, Noncurrent Deferred tax assets, net Deferred Tax Assets, Net of Valuation Allowance, Noncurrent Total assets Assets LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities and Equity [Abstract] Accounts payable Accounts Payable, Current Accrued expenses and other current liabilities Accrued Liabilities, Current Common stock warrants, current Common Stock Warrants, Current, Fair Value Disclosure This item represents current portion of a security that gives the holder the right to purchase shares of common stock in accordance with the terms of the instrument, usually upon payment of a specified amount. Long-term debt, current maturities Long-term Debt, Current Maturities Total current liabilities Liabilities, Current Deferred revenue Deferred Revenue, Noncurrent Common stock warrants, noncurrent Common Stock Warrants, Noncurrent, Fair Value Disclosure This item represents non-current portion of a security that gives the holder the right to purchase shares of common stock in accordance with the terms of the instrument, usually upon payment of a specified amount. Long-term debt, excluding current maturities Long-term Debt, Excluding Current Maturities Other liabilities Other Liabilities Total liabilities Liabilities Stockholders' equity Stockholders' Equity Attributable to Parent [Abstract] Common stock ($.0001 par value, 100,000,000 shares authorized, 52,396,497 and 51,642,520 issued and outstanding at September 30, 2013, and December 31, 2012, respectively) Common Stock, Value, Issued Additional paid-in capital Additional Paid in Capital, Common Stock Accumulated deficit Retained Earnings (Accumulated Deficit) Total stockholders' equity Stockholders' Equity Attributable to Parent Total liabilities and stockholders' equity Liabilities and Equity Equity [Abstract] Class of Warrant or Right [Table] Class of Warrant or Right [Table] Measurement Frequency [Axis] Measurement Frequency [Axis] Fair Value, Measurement Frequency [Domain] Fair Value, Measurement Frequency [Domain] Fair Value, Measurements, Recurring [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value Hierarchy [Domain] Fair Value Hierarchy [Domain] Fair Value, Inputs, Level 2 [Member] Fair Value, Inputs, Level 2 [Member] Scenario [Axis] Scenario [Axis] Scenario, Unspecified [Domain] Scenario, Unspecified [Domain] Extended Expiration Period [Member] Extended Expiration Period [Member] Extended Expiration Period [Member] Related Party [Axis] Related Party [Axis] Related Party [Domain] Related Party [Domain] Affiliated Entity Affiliated Entity [Member] Class of Warrant or Right [Line Items] Class of Warrant or Right [Line Items] Common stock warrants, current and noncurrent Common Stock Warrants, Current and Noncurrent, Fair Value Disclosure This item represents current and noncurrent portion of a security that gives the holder the right to purchase shares of common stock in accordance with the terms of the instrument, usually upon payment of a specified amount. Change In fair value of common stock warrants Change In Fair Value Of Common Stock Warrants The aggregate adjustment to the fair market value of liability classified warrants to purchase common stock. Service agreement term Service Agreement Term Service Agreement Term in years. Warrants to purchase common stock Class of Warrant or Right, Number of Securities Called by Warrants or Rights Exercise price of warrants to purchase common stock Class of Warrant or Right, Exercise Price of Warrants or Rights Warrants contractual term (in years) Warrants contractrual term The contractual life of warrants. Commitment to Invest Commitment to Invest Related party commitment to invest at the Company's discretion in exhange for common stock and warrants. Warrants to purchase percentage of acquired shares Warrants to Purchase Percentage of Shares Related party commitment to invest at the Company's discretion in exhange for warrants to purchase a percentage of the number of Company shares acquired by the related party. Proceeds from issuance of warrants and options Proceeds From Issuance Of Warrants and Options 1 The cash inflow associated with both the amount received from holders exercising their stock options and issuance of rights to purchase common shares at predetermined price (usually issued together with corporate debt). This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately. Warrants exercised Warrants exercised Warrants exercised Warrants, outstanding Class of Warrant or Right, Outstanding Capital units, authorized Capital Units, Authorized Preferred stock, shares authorized Preferred Stock, Shares Authorized Property, Plant and Equipment [Abstract] Property, plant and equipment Property, Plant and Equipment [Table Text Block] Fair Value Disclosures [Abstract] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Common stock warrants, current and noncurrent Term loan Debt, Long-term and Short-term, Combined Amount Per Share Data Earnings Per Share [Text Block] Procurement Contract [Table] Procurement Contract [Table] Procurement Contract [Table] Procurement Contract [Axis] Procurement Contract [Axis] Procurement Contract [Axis] Procurement Contract [Domain] Procurement Contract [Domain] Procurement Contract [Domain] BARDA Contract Barda Contract [Member] Barda Contract [Member] Procurement Contract [Line Items] Procurement Contract [Line Items] Procurement Contract [Line Items] Courses delivered Courses delivered Courses of Arestvyr delivered to the Strategic Stockpile. Recent Accounting Pronouncements [Abstract] Recent Accounting Pronouncements [Abstract] New Accounting Pronouncements, Policy New Accounting Pronouncements, Policy [Policy Text Block] Payables and Accruals [Abstract] Accrued Expenses and Other Current Liabilities Accrued expenses and other current liabilities [Text Block] The entire disclosure for accrued liabilities and other current liabilities at the end of the reporting period. Condensed Consolidated Statement of Operations [Abstract] Condensed Consolidated Statement of Operations [Abstract] Schedule of Error Corrections and Prior Period Adjustment Restatement [Table] Schedule of Error Corrections and Prior Period Adjustment Restatement [Table] As Originally Reported Scenario, Previously Reported [Member] Adjustments Revised Adjustment [Member] Amounts represent revised, rather than restated, adjustments due to the immaterial nature of such adjustments, and the resulting effect of a correction of an error on a financial statement line item or any per share amounts. The cumulative effect of the change on retained earnings or net assets in the statement of financial position would also be represented under this domain member. Error Corrections and Prior Period Adjustments Restatement [Line Items] Error Corrections and Prior Period Adjustments Restatement [Line Items] Research and development Research and Development Revenue Revenue earned during the period arising from services provided under the terms of a contract, not elsewhere specified in the taxonomy. May include government contracts and any other contract related to a particular project or product. Selling, general and administrative Selling, General and Administrative Expense Research and development Research and Development Expense Patent preparation fees Patent Preparation Fees The aggregate costs incurred for fees associated with the protection and expansion of patents and related intellectual property. Total operating expenses Operating Expenses Operating loss Operating Income (Loss) Other income, net Nonoperating Income (Expense) Loss before income taxes Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Benefit from income taxes Income Tax Expense (Benefit) Net income (loss) Net Income (Loss) Attributable to Parent Earnings Per Share, Basic and Diluted Earnings Per Share, Basic and Diluted Weighted Average Number of Shares Outstanding, Basic and Diluted Weighted Average Number of Shares Outstanding, Basic and Diluted Revision of Consolidated Financial Statements [Abstract] Revision of Consolidated Financial Statements [Abstract] Accounting Changes and Error Corrections Accounting Changes and Error Corrections [Text Block] Income Tax Disclosure [Abstract] Income Tax Income Tax Disclosure [Text Block] Interim Condensed Consolidated Financial Statements Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Laboratory Equipment, Gross Machinery and Equipment, Gross Leasehold Improvements, Gross Leasehold Improvements, Gross Computer Equipment, Gross Computer Equipment The gross amount of capitalized computer equipment costs as of the balance sheet date. Furniture and Fixtures, Gross Furniture and Fixtures, Gross Property, Plant and Equipment, Gross Property, Plant and Equipment, Gross Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Property, Plant and Equipment, Net Property, Plant and Equipment Property, Plant and Equipment Disclosure [Text Block] Statement of Cash Flows [Abstract] Statement [Table] Statement [Table] Statement [Line Items] Statement [Line Items] Cash and Cash Equivalents, Period Increase (Decrease) [Abstract] Cash and Cash Equivalents, Period Increase (Decrease) [Abstract] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Net income (loss) Adjustments to reconcile net income (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 other amortization Depreciation, Depletion and Amortization Increase (decrease) in fair value of warrants Increase In Fair Value Of Warrants Noncash expense, not otherwise specified in the taxonomy, charged against earnings in the period to adjust the fair market value of liability classified warrants to purchase common stock. Stock based compensation Share-based Compensation Amortization of Debt Discount (Premium) Amortization of Debt Discount (Premium) Changes in assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Accounts receivable Increase (Decrease) in Accounts Receivable Inventory Increase (Decrease) in Inventories Deferred costs Increase (Decrease) in Deferred Charges Prepaid expenses and other current assets Increase (Decrease) in Prepaid Expense Other assets Increase (Decrease) in Other Operating Assets Deferred income taxes, net Deferred Income Tax Expense (Benefit) Accounts payable, accrued expenses and other liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities Deferred revenue Increase (Decrease) in Deferred Revenue Other liabilities Increase (Decrease) in Other Operating Liabilities Net cash used in operating activities Net Cash Provided by (Used in) Operating Activities Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Capital expenditures Payments to Acquire Property, Plant, and Equipment Payment of collateral for commercial surety bond Payment of collateral for commercial surety bond The net cash outflow of funds paid as collateral for a commercial surety bond that are classified as investing activities. Net cash (used in) provided by investing activities Net Cash Provided by (Used in) Investing Activities Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Net proceeds from exercise of warrants and options Proceeds From Issuance Of Warrants and Options The cash inflow associated with both the amount received from holders exercising their stock options and issuance of rights to purchase common shares at predetermined price (usually issued together with corporate debt). This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately. Payment of common stock tendered for employee tax obligations Payments Related to Tax Withholding for Share-based Compensation Proceeds from issuance of long-term debt Proceeds from Issuance of Long-term Debt Repayments of long-term debt Repayments of Long-term Debt Net cash provided by financing activities Net Cash Provided by (Used in) Financing Activities Net increase (decrease) in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Cash and cash equivalents at beginning of period Cash and cash equivalents at end of period Supplemental disclosure of non-cash financing activities: Supplemental Cash Flow Information [Abstract] Reclass of common stock warrant liability to additional paid-in capital upon warrant exercise Reclass of Common Stock Warrant Liability To Additional Paid In Capital Upon Exercise Value of reclass of common stock warrant liability to additional paid-in capital upon exercise in noncash financing activities. Cash and Cash Equivalents, at Carrying Value Accounts receivable Total current assets Property, Plant and Equipment, net Goodwill Total assets Total current liabilities Total liabilities Common Stock, Value, Issued Total stockholders' equity Total liabilities and stockholders' equity Research and Development [Abstract] Number of courses to be delivered Number of Courses To Be Delivered 1 Number of Arestvyr, also known as ST-246, courses to be delivered to the U.S. Strategic National Stockpile Value of contract Government Contract, Value of Award 1 Value of base contract award. Contract value of development and support activities Contract Value of Development and Support Activities Contract value of development and support activities Option to purchase additional courses Government Contract, Maximum Number of Additional Courses Available to Purchase Government contract, maximum number of additional courses available to purchase by the U.S. government, subsequently withdrawn from final contract. Number of courses under modified contract Government Contract, Number of Courses Purchased Under Modified Contract Government contract, number of courses to be purchased under modified contract. Number of courses manufactured using federal funds Government Contract, Number of Courses Manufactured Using Federal Funds Government contract, number of courses to be delivered that were manufactured using federal funds under prior development contracts. Proceeds from advance payments under the BARDA contract Proceeds from Advance Payments, Government Contracts Proceeds from advance payments, government contracts Milestone payment Milestone payment Proceeds from milestone payment, Government contracts Contract receivable collected, long term contract Contract Receivable Collected Amount billed and collected from customers under long-term contracts, including delivered product and reaserch and development. Excludes amounts due that have been withheld because of retainage provisions in a contract. Research and development revenue long-term contract Research and Development Revenue Long-term Contract Revenue earned during the period arising from research and development services provided under the terms of a long-term contract. May include government contracts and any other contract related to a particular project or product. Contract receivable collected, research and developemnt services Contract receivable collected, research and developemnt services Amount billed to customers under long-term contracts or programs and collected for research and development services. Excludes amounts due that have been withheld because of retainage provisions in a contract. Deferred revenue, additions from BARDA contract Deferred Revenue, Additions Number of active contracts Number of Active Contracts Number of active contracts. Number of active grants Number of Active Grants Number of active grants Potential future research and development funding Potential Future Aggregate Research and Development Expenses Potential future aggregate research and development funding for specific projects which includes options that may or may not be exercised at the U.S. government's discretion. Document and Entity Information [Abstract] Document and Entity Information [Abstract] Document Information [Table] Document Information [Table] Document Information, Document [Axis] Document Information, Document [Axis] Document [Domain] Document [Domain] Document Information [Line Items] Document Information [Line Items] Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Trading Symbol Trading Symbol Document Type Document Type Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Amendment Flag Amendment Flag Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Related Party Transactions [Abstract] Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Member of Board of Directors Management [Member] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Lease property price per month Lease Property Price Per Month1 Lease property price per month Free rent period Free Rent Period Free Rent Period in months allowed under the sublease. Monthly rental payments first five years Monthly Rental Payments First Five Years The amount of the monthly rental payments due under the sublease entered into for the first five years. Initial rent period Initial Rent Period Represents the number of years for the initial rent period of five years and related monthly payments. Monthly rental payments after five years Monthly Rental Payments After Five Years The amount of the monthly rental payments due under the sublease entered into after the first five years. Rent period after first five years Rent Period After First Five Years Represents the amount of years after the initial rent period of first five years of which monthly rental payments will increase. Legal fees Legal Fees Accounts payable to related party Accounts Payable, Related Parties Income Statement [Abstract] Revenues Revenues [Abstract] Operating expenses Operating Expenses [Abstract] Total operating expenses Operating loss Decrease (increase) in fair value of common stock warrants Interest expense Interest Expense Loss before income taxes Benefit from income taxes Net income (loss) Comprehensive income (loss) Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] Change in net unrealized gain (loss) on short-term investments Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax Comprehensive income (loss) Comprehensive Income (Loss), Net of Tax, Attributable to Parent 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, Name [Domain] Antidilutive Securities, Name [Domain] Stock Options [Member] Employee Stock Option [Member] Stock Appreciation Rights (SARs) [Member] Stock Appreciation Rights (SARs) [Member] Restricted Stock Units (RSUs) [Member] Restricted Stock Units (RSUs) [Member] Warrants [Member] Warrant [Member] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Weighted average number Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Weighted average number of shares outstanding, basic and diluted Procurement Contract and Research Agreements Procurement Contract and Research Agreements [Text Block] The entire disclosure for procurement contracts and research agreements including grants or contracts from various agencies of the U.S. government to support the reporting entity's research and development activities. Loss contingency Loss Contingency, Accrual, Current Bonus Accrued Bonuses, Current Professional fees Accrued Professional Fees, Current Vacation Accrued Vacation, Current Other Other Accrued Liabilities, Current Total Accrued Expenses and Other Current Liabilities Accrued expenses and other current liabilities [Table Text Block] Tabular disclosure of the components of accrued liabilities and other current liabilities. Related Party Transactions Related Party Transactions Disclosure [Text Block] Equity and Financial Instruments Financial Instruments Disclosure [Text Block] Adjustments for Error Corrections [Axis] Adjustments for Error Corrections [Axis] Adjustments for Error Correction [Domain] Adjustments for Error Correction [Domain] Schedule of Condensed Balance Sheet Condensed Balance Sheet [Table Text Block] Schedule of Condensed Income Statement Condensed Income Statement [Table Text Block] Fair Value Disclosures Fair Value Disclosures [Text Block] Deferred tax assets, net of valuation allowance Deferred Tax Assets, Net of Valuation Allowance Deferred tax assets, valuation allowance Deferred Tax Assets, Valuation Allowance Taxes payable Taxes Payable Tax payment, expected Tax Payment, Expected Expected carrying value of obligations incurred and payable for alternative minimum tax.