Document and Entity Information [Abstract] Assets [Abstract] Assets Assets, Current [Abstract] Current assets: Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents at end of period Cash and cash equivalents at beginning of period Cash and cash equivalents Short-term Investments Short-term investments Fair value of short-term investments Interest and other receivables Nontrade Receivables Contingent Asset Contingent asset Contingent asset. Prepaid Expense, Current Prepaid expenses Assets, Current, Total Total current assets Property and equipment, net Property, Plant and Equipment, Net In Process Research and Development In-process research and development In-process research and development Goodwill Goodwill Assets, Total Total assets Liabilities and Stockholders' Equity Liabilities and Equity [Abstract] Current liabilities: Liabilities, Current [Abstract] Accounts payable Accounts Payable, Current Accrued Liabilities, Current Total accrued liabilities Accrued liabilities Contingent Liability Contingent liability. Contingent liability Liabilities, Current, Total Total current liabilities Stockholders' equity: Stockholders' Equity Attributable to Parent [Abstract] Common Stock, Value, Issued Common stock, $0.001 par value; 500,000,000 shares authorized; 47,715,709 shares issued and outstanding at both September 30, 2012 and December 31, 2011 Common Stock, Par or Stated Value Per Share Common stock, par value Common stock, shares authorized Common Stock, Shares Authorized Common stock, shares issued Common Stock, Shares, Issued Common stock, shares outstanding Common Stock, Shares, Outstanding Additional paid-in capital Additional Paid in Capital, Common Stock Accumulated other comprehensive 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' equity Liabilities and Equity, Total Total liabilities and stockholders' equity Licensing revenue Licenses Revenue Net sales Other Revenue, Net Revenue from Grants Grant revenue Revenues, Total Total net revenues Revenues Cost of Goods Sold Cost of goods sold Gross Profit Gross margin Operating expenses: Operating Expenses [Abstract] Research and development Research and Development Expense (Excluding Acquired in Process Cost) Selling, General and Administrative Expense Selling, general and administrative Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Research and Development in Process In-process research and development Write-off of in-process research and development Income (Loss) from Equity Method Investments Equity in loss of investee Operating Expenses, Total Total operating expenses Operating Income (Loss) Loss from operations Loss from operations Interest income Investment Income, Interest Interest Expense Interest Expense Other Nonoperating Income (Expense) Other income (expense) Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Loss before cumulative effect of change in accounting principle Net loss Net Income (Loss) Attributable to Parent Net loss Preferred stock dividends Dividends, Preferred Stock Deemed dividends on preferred stock Preferred Stock Conversions, Inducements Net Income (Loss) Available to Common Stockholders, Basic Net loss applicable to common stock Earnings Per Share, Basic and Diluted Earnings Per Share, Basic and Diluted Weighted Average Shares Basic and Diluted Weighted average shares - basic and diluted Weighted average shares - basic and diluted 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, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation and Amortizations Depreciation and amortization Depreciation And Amortizations. Gain (Loss) on Sale of Property Plant Equipment (Gain) loss on disposals of fixed assets Loss on Fair Value of Warrants Loss on fair value of warrants Loss on fair value of warrants. Gain Loss on Change in Fair Value of Contingent Consideration Gain on change in fair value of contingent consideration Gain on change in fair value of contingent consideration. Share-based Compensation Share-based compensation expense related to employee stock options and restricted stock issued Expense Related to Stock Options Issued to Non Employees Expense related to options issued to non-employees Expense related to stock options issued to non-employees. Expenses Paid by Issuance of Common Stock Expenses paid by issuance of common stock Expenses paid by issuance of common stock. Expenses Paid by Issuance of Warrants Expenses paid by issuance of warrants Expenses paid by issuance of warrants. Expenses Paid by Issuance of Preferred Stock Expenses paid by issuance of preferred stock Expenses paid by issuance of preferred stock. Expenses Related to Stock Warrants Issued Expenses related to stock warrants issued Expenses related to stock warrants issued. Accretion (Amortization) of Discounts and Premiums, Investments Amortization of premium/ (accretion of discount) on investments in securities Amortization of debt discount Amortization of Debt Discount (Premium) Forgiveness of Employee Receivable Forgiveness of employee receivable Forgiveness of employee receivable. Write Off of License Agreement Write-off of license agreement Write-off of license agreement. Changes in assets and liabilities, net of effect of acquisitions: Increase (Decrease) in Operating Capital [Abstract] Increase (Decrease) in Prepaid Expense and Other Assets Decrease in prepaid expenses and other assets Increase (Decrease) in Accounts Payable and Accrued Liabilities Increase in accounts payable and accrued liabilities Net Cash Provided by (Used in) Operating Activities Net cash used in operating activities Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Payments to Acquire Short-term Investments Purchases of other short-term investments Proceeds from Sale and Maturity of Available-for-sale Securities Proceeds from maturities and sales of other short-term investments Payments to Acquire Property, Plant, and Equipment Purchases of property and equipment Proceeds from sale of property and equipment Proceeds from Sale of Property, Plant, and Equipment Purchase of Certificate of Deposits Purchase of certificate of deposit Purchase of certificate of deposits. Maturity of Certificate of Deposits Proceeds from maturities and sales of certificates of deposit Maturity of certificate of deposits. Payment on Obligation under License Agreement Payment on obligation under license agreement Payment on obligation under license agreement. Cash Acquired from Acquisition Cash paid for acquisitions, net of cash acquired Origination of Notes Receivable from Related Parties Issuance of note receivable - related party Payments on note receivable Proceeds from Sale and Collection of Notes Receivable Advance to Investee Advance to Investee Advance to investee Cash Transferred in Rescission of Acquisition Cash transferred in rescission of acquisition Cash transferred in rescission of acquisition Cash Received in Rescission of Acquisition Cash received in rescission of acquisition Cash received in rescission of acquisition Net Cash Provided by (Used in) Investing Activities Net cash used in investing activities Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Proceeds from sale of preferred stock Proceeds from Issuance of Convertible Preferred Stock Proceeds from Issuance of Common Stock Gross proceeds of this financing Proceeds from sale of common stock Proceeds from exercise of stock options Proceeds from Stock Options Exercised Proceeds from sale or exercise of warrants Proceeds from Issuance of Warrants Payments for Repurchase of Warrants Repurchase of warrants Payments of Stock Issuance Costs Payments for financing and offering costs Repayments of Long-term Debt Payments on notes payable and long-term debt Proceeds from Issuance of Notes Payable and Detachable Warrants Proceeds from issuance of notes payable and detachable warrants Proceeds from issuance of notes payable and detachable warrants Cash Paid in Lieu for Reverse Stock Split Cash paid in lieu of fractional shares for reverse stock split Cash paid in lieu for reverse stock split Net Cash Provided by (Used in) Financing Activities Net cash provided by financing activities Effect of exchange rate changes on cash Effect of Exchange Rate on Cash and Cash Equivalents Cash and Cash Equivalents, Period Increase (Decrease) Net (decrease)/increase in cash and cash equivalents Basis of Presentation Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Basis of Presentation [Abstract] Use of Estimates [Text Block] Use of Estimates Use of Estimates Use of Estimates [Abstract] Use of Estimates Acquisition of SynthRx Business Combination Disclosure [Text Block] Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Short-Term Investments Short-Term Investments [Abstract] Fair Value of Financial Instruments Fair Value Disclosures [Text Block] Fair Value of Financial Instruments [Abstract] Accrued Liabilities Accounts Payable and Accrued Liabilities Disclosure [Text Block] Accrued Liabilities [Abstract] Share-Based Compensation Expense Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Share-Based Compensation Expense [Abstract] Stockholders' Equity [Abstract] Net Loss Per Common Share Earnings Per Share [Text Block] Net Loss Per Common Share [Abstract] Recent Accounting Pronouncements Description of New Accounting Pronouncements Not yet Adopted [Text Block] Recent Accounting Pronouncements [Abstract] Supplementary Cash Flow Information Cash Flow, Supplemental Disclosures [Text Block] Supplementary Cash Flow Information [Abstract] Stockholders' Equity Stockholders' Equity Note Disclosure [Text Block] 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 Cash Flows [Abstract] Schedule of Purchase Price Allocation [Table Text Block] Preliminary estimated purchase price of the acquisition Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] Net tangible and intangible assets and liabilities acquired Tangible and Intangible Assets and Liabilities Acquired [Abstract] Net Tangible and intangible assets and liabilities acquired Tangible and intangible assets and liabilities acquired. Acquired Intangibles [Abstract] Acquired intangibles: Acquired intangibles. Business Acquisition, Purchase Price Allocation, Net Tangible Assets Net tangible assets acquired Business Acquisition, Purchase Price Allocation, Liabilities Assumed Net tangible liabilities assumed Business Acquisition, Purchase Price Allocation, Goodwill Amount Goodwill Business Acquisition, Purchase Price Allocation, Assets Acquired (Liabilities Assumed), Net Total purchase price Preliminary estimated purchase price Initial Consideration Fully Vested Shares [Member] Initial consideration (Fully Vested Shares) [Member] Initial consideration (fully vested shares). Initial Consideration Subject to Vesting Shares [Member] Initial consideration (Subject to Vesting Shares) [Member] Initial consideration (Subject to Vesting Shares). First Milestone [Member] First Milestone - dosing of first patient [Member] First Milestone dosing of first patient. Second Milestone [Member] Second Milestone - NDA acceptance [Member] Second Milestone NDA acceptance. Third Milestone [Member] Third Milestone - FDA approval [Member] Third Milestone FDA approval. Synthrx [Member] SynthRx. SynthRx [Member] Business Acquisition, Cost of Acquired Entity [Abstract] Preliminary estimated purchase price of the acquisition Acquisition (Textual) [Abstract] Acquisition of SynthRx. Acquisition of SynthRx (Textual) [Abstract] Shares Deducted as Expenses Shares deducted as a result of certain expenses of SynthRx Shares deducted as expenses. Number of Shares Issuable to Reduce Reduction of Shares Issuable Number of shares issuable to reduce. Percentage of Shares Issuable to Reduce Percentage of shares issuable to reduce. Percentage of shares issuable to reduce Repurchase Price of Subject to Vesting Shares Repurchase price of shares Repurchase price of subject to vesting shares. Repurchase Price of Subject to Vesting Shares Schedule of Business Acquisitions by Acquisition, Equity Interest Issued or Issuable [Table] Equity Interest Type [Axis] Equity Interest Issued or Issuable, Type [Domain] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Equity Interests Issued or Issuable [Line Items] Schedule of Business Acquisitions, by Acquisition [Table] Business Acquisition [Line Items] Fair Value, by Balance Sheet Grouping [Table Text Block] Fair values of short-term investments, contingent asset and contingent liability Reconciliation of the contingent asset and liability that are measured and recorded at fair value on a recurring basis using significant unobservable inputs Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Fair Values of Short Term Investments and Contingent Asset and Contingent Liability [Abstract] Fair values of short-term investments, contingent asset and contingent liability Fair values of short-term investments and contingent asset and contingent liability. Reconciliation of Contingent Asset and Liability [Abstract] Reconciliation of the contingent asset and liability that are measured and recorded at fair value on a recurring basis using significant unobservable inputs Reconciliation of the contingent asset and liability that are measured and recorded at fair value on a recurring basis using significant unobservable inputs. Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value Ending balance, Contingent Asset Beginning balance, Contingent Asset Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value Ending balance, Contingent Liability Beginning balance, Contingent Liability Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, Sales, Issuances, Settlements Net purchases, issuances, sales and settlements, Contingent Asset Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases, Sales, Issuances, Settlements Net purchases, issuances, sales and settlements, Contingent Liability Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings Total net unrealized gains (losses) included in earnings, Contingent Liability Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Other Comprehensive Income (Loss) Total net unrealized gains (losses) included in other comprehensive income, Contingent Liability Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3 Transfers into level 3 (gross), Contingent Asset Fair Value, Measurement with Unobservable Inputs Reconciliation, Liability, Transfers Into Level 3 Transfers into level 3 (gross), Contingent Liability Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3 Transfers out of level 3 (gross), Contingent Asset Fair Value, Measurement with Unobservable Inputs Reconciliation, Liability, Transfers out of Level 3 Transfers out of level 3 (gross), Contingent Liability Fair Value, Inputs, Level 1 [Member] Level 1 [Member] Fair Value, Inputs, Level 2 [Member] Level 2 [Member] Fair Value, Inputs, Level 3 [Member] Level 3 [Member] Schedule of Accrued Liabilities [Table Text Block] Accrued liabilities Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Table] Fair Value, Hierarchy [Axis] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block] Estimated share-based compensation expense related to equity awards granted to employees and non-employee directors Accrued Contracts and Study Expenses Accrued contracts and study expenses. Accrued contracts and study expenses Other Accrued Liabilities, Current Other accrued liabilities Share Based Compensation Expense (Textual) [Abstract] Share-Based compensation expense Share Based Compensation Expense (Textual) [Abstract] Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures Granted stock options 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 Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table] Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs, by Report Line [Axis] Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Report Line [Domain] General and Administrative Expense [Member] Selling, general and administrative expense [Member] Research and Development Expense [Member] Research and development expense [Member] Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive net loss Weighted-average number of those common stock equivalents outstanding Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] Supplementary Cash Flow Information Stock Options [Member] Options [Member] Interest Paid Interest paid Issuance of Warrants, Common Stock and Preferred Stock Reasons [Abstract] Issuance of warrants, common stock and preferred stock for: Reasons for issuance of warrants, common stock and preferred stock. Conversion of Notes Payable and Accrued Interest Conversion of notes payable and accrued interest. Conversion of notes payable and accrued interest Prepaid Services to Consultants Prepaid services to consultants. Prepaid services to consultants Conversion of Preferred Stock Conversion of preferred stock Conversion of preferred stock. Financial Advisor Services in Connection with Private Placements Financial advisor services in conjunction with financings Financial advisor services in connection with private placements. Schedule of Earnings Per Share, Basic, by Common Class, Including Two Class Method [Table] Class of Stock [Axis] Class of Stock [Domain] Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] Weighted Average Number of Shares Outstanding Reconciliation [Abstract] Weighted-average number of those common stock equivalents outstanding Noncash Investing and Financing Items [Abstract] Supplemental disclosures of non-cash investing and financing activities: Noncash or Part Noncash Acquisition, Net Nonmonetary Assets Acquired (Liabilities Assumed) Acquisitions Acquisition of Treasury Stock in Settlement of Claim Acquisition of treasury stock in settlement of a claim. Acquisition of treasury stock in settlement of a claim Cancellation of Treasury Stock Cancellation of treasury stock Cancellation of treasury stock. Noncash or Part Noncash Acquisition, Value of Liabilities Assumed Assumptions of liabilities in acquisitions Fair Value of Contingent Liabilities Net of Contingent Assets Fair value of contingent liabilities, net of contingent assets, recorded at acquisition date Fair value of contingent liabilities, net of contingent assets. Acquisition of License Agreement for Long Term Debt Acquisition of license agreement for long-term debt. Acquisition of license agreement for long-term debt Cashless Exercise of Warrants Cashless exercise of warrants. Cashless exercise of warrants Trade Asset Converted to Available for Sale Asset Trade asset converted to available-for-sale asset. Trade asset converted to available-for-sale asset Dividends Extinguished Dividends extinguished. Dividends extinguished Trade Payable Converted to Note Payable Trade payable converted to note payable. Trade payable converted to note payable Issuance of Warrants for Return of Common Stock Issuance of warrants for return of common stock. Issuance of warrants for return of common stock Detachable Warrants Issued with Notes Payable Detachable warrants issued with notes payable Detachable warrants issued with notes payable. Cumulative Preferred Stock Dividends Cumulative preferred stock dividends. Cumulative preferred stock dividends Unrealized Gain (Loss) on Investments Unrealized (gain)/loss on short-term investments Dividends Issuance of common stock to pay dividends Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block] Outstanding warrants to purchase shares of common stock Outstanding Warrants to Purchase Shares of Common Stock [Abstract] Outstanding warrants to purchase shares of common stock. Outstanding warrants to purchase shares of common stock Class of Warrant or Right, Exercise Price of Warrants or Rights Exercise Price Stockholders Equity (Textual) [Abstract] Stockholders' Equity (Textual) [Abstract] Stockholders equity. Five Year Warrants [Member] 5-year warrants. 5-year warrants [Member] One Year Warrants [Member] 1-year warrants. 1-year warrants [Member] Class of Warrant or Right, Number of Securities Called by Warrants or Rights Warrants Warrants to purchase up to an aggregate Class of Warrant or Right [Table] Class of Warrant or Right [Axis] Class of Warrant or Right [Domain] Class of Warrant or Right [Line Items] Dividends Accrued Dividends accrued. Dividends accrued Accrued Liabilities, Current [Abstract] Accrued liabilities Fair Value of Contingent Asset Contingent asset Fair value of contingent asset. Fair Value of Contingent Liability Contingent liability Fair value of contingent liability. Investments (Textual) [Abstract] Investments (Textual) [Abstract] Investments. Allocated Share-based Compensation Expense, Net of Tax Share-based compensation expense Additional Proceeds from Exercise of Warrants Maximum Additional proceeds from exercise of warrants maximum. Additional proceeds from exercise of warrants maximum Business Acquisition Purchase Price in-process Research and Development Expensed IPR&D, ANX-188 lead product program, fair value In-process research and development Business acquisition purchase price in process research and development expensed. Repurchase of Common Shares Subject to Vesting Repurchase of shares Repurchase of common shares Subject to Vesting Repurchase of common shares subject to vesting. Presentation of Comprehensive Income [Policy Text Block] Comprehensive Income The policy disclosure for presentation of comprehensive income. Number of Primary Endpoints Patients Number of patients - primary endpoint Number of primary endpoints patients. Proceeds from Issuance of stock units Proceeds From Issuance of Warrants Proceeds from issuance of stock units. Class of Warrant Twelve [Member] April 2015. April 2015 [Member] Class of Warrant Eleven [Member] January 2016. January 2016 [Member] Class of Warrant Ten [Member] April 2015 [Member] January 2012. Class of Warrant Nine [Member] May 2015 [Member] May 2015. Class of Warrant Eight [Member] October 2014 [Member] June 2014. Class of Warrant Seven [Member] June 2014 [Member] July 2012. Class of Warrant Six [Member] August 2014 [Member] October 2014. Class of Warrant Five [Member] July 2014 [Member] October 2014. Class of Warrant Four [Member] October 2014 [Member] August 2014. Class of Warrant Two [Member] June 2014. June 2014 [Member] Class of Warrant or Rights Expiration Date Expiration Date Class of warrant or rights expiration date. Subsequent remeasurements Subsequent re-measurements Subsequent re-measurements. Net cash settlement provision Net cash settlement provision. Net cash settlement provision Business Acquisition, Contingent Consideration, Shares Issuable Shares issued , Fully vested shares Share Issued/Issuable Business Acquisition, Contingent Consideration, at Fair Value Probability Weighted Fair Value Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized Total unrecognized estimated compensation cost related to non-vested employee and non-employee director share-based awards Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Anti-dilutive securities Liabilities Total liabilities Goodwill, Impairment Loss Impairment loss - write-off of goodwill Goodwill impairment Condensed Consolidated Statements of Operations and Comprehensive Income /(Loss) [Abstract] Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] Comprehensive Income/(Loss): Deferred Tax Liabilities, Noncurrent Deferred income tax liability Income Taxes [Abstract] Income Tax Disclosure [Text Block] Income Taxes Business Acquisition Contingent Consideration Shares Issuable Subject To Vesting Shares issued, Subject to vesting shares Number of shares issuable under the contingent consideration arrangement in a business combination that are subject to vesting. Probability Of Obtaining Test Statistic, P-Value P-Value, significance level of statistical test using more than 250 patients P-Value, significance level or probability of obtaining a test statistics. Probability Of Obtaining Test Statistic Significance Level Stated Description P-Value, significance level of statistical test, Terms, description Probability of obtaining test statistic significance level stated description. Business Acquisition, Purchase Price Allocation, Deferred Income Taxes, Asset (Liability), Net Deferred income tax liability resulting from the acquisition Deferred income tax liability Business Acquisition, Contingent Consideration, Shares Issuable, Description Shares issued based on the achievement of First Milestone, Description Business Acquisition Contingent Consideration Shares Issuable Minimum Minimum Shares issued based on the achievement of First Milestone Minimum number of shares issuable under the contingent consideration arrangement in a business combination. Fair Value Of Financial Instruments (Textual) [Abstract] Fair value of financial instruments textual abstract. Fair Value of Financial Instruments (Textual) [Abstract] In Process Research and Development, Policy [Policy Text Block] Acquired In-Process Research and Development Contingent Asset And Contingent Liability [Policy Text Block] Contingent Asset and Contingent Liability Contingent asset and contingent liability. Supplemental Disclosures Of Cash Flow Information [Abstract] Supplemental disclosures of cash flow information: Supplemental disclosures of cash flow information. Underwriter Commissions In Conjunction With Financings Underwriter commissions in conjunction with financings. Underwriter commissions in conjunction with financings Class Of Warrant Thirteen [Member] November 2016 [Member] Class of warrant thirteen. Stock Issued During Period, Shares, New Issues Underwritten public offering of common stock and warrants Income Tax (Textual) [Abstract] Income Taxes (Textual) [Abstract] Income tax. Cumulative Change In Ownership Percentage Cumulative change in ownership percentage. Cumulative change in ownership percentage Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block] Goodwill Income Tax, Policy [Policy Text Block] Deferred Income Tax Liability Business Acquisition, Equity Interest Issued or Issuable, Number of Shares Minimum Shares issued based on the achievement of First Milestone Reduction In Business Acquisition Transaction Related Expenses Transaction-related expenses Reduction in business acquisition transaction related expenses. Cumulative Change In Ownership Percentage Description Consider For Operating Loss And Tax Credit Carry Forward Cumulative change in ownership percentage description Cumulative change in ownership percentage description consider for operating loss and tax credit carry forward. Operating Loss And Tax Credit Carry Forward Testing Period Income tax holiday, testing period Operating loss and tax credit carry forward testing period. Range [Axis] Range [Domain] Maximum [Member] Maximum [Member] Minimum [Member] Minimum [Member] Proceeds from Issuance or Sale of Equity Gross proceeds of financing under Common Stock and Warrant Underwritten Public Offering Proceeds From Issuance Or Sale Of Equity Net Of Underwriting Commission And Offering Expenses Proceeds from issuance of warrants under Common Stock and Warrant Underwritten Public Offering Proceeds from issuance or sale of equity net of underwriting commission and offering expenses. Proceeds from Warrant Exercises Additional proceeds from the exercise of the warrants under Common Stock and Warrant Underwritten Public Offering Class Of Warrant Or Right Number Of Securities Called Per Warrants Or Rights Amount of share purchasable per warrant Class of warrant or right number of securities called per warrants or rights. Class Of Warrant Or Right Number Of Securities Called By Warrants Or Rights Issued To Underwriter Additional shares of common stock purchased using warrants Class of warrant or right number of securities called by warrants or rights issued to underwriter. Class Of Warrant Or Right Exercise Price Of Warrants Or Rights Issued To Underwriter Common stock exercise price Class of warrant or right exercise price of warrants or rights issued to underwriter. Probability Weighted Fair Value Of Shares Repurchased By Company Probability weighted fair value of shares repurchased by the company Probability weighted fair value of shares repurchased by the company. Fair Value, Option, Changes in Fair Value, Gain (Loss) Reduction of fair value of warrants Other Comprehensive Income (Loss), Net of Tax Other Comprehensive gains (losses) New Accounting Pronouncement Or Change In Accounting Principle Cumulative Effect Of Change On Equity Or Net Assets One Cumulative effect of change in accounting principle Cumulative effect of change in accounting principle New accounting pronouncement or change in accounting principle cumulative effect of change on equity or net assets one. Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition Expected to be recognized over a weighted-average period Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings Total net unrealized gains (losses) included in earnings, Contingent Asset Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) Total net unrealized gains (losses) included in other comprehensive income, Contingent Asset Warrant [Member] Warrants [Member] Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Stock options exercised Deferred Tax Assets, Operating Loss Carryforwards Impact on income tax, tax attribute carry forwards Write off of Fixed Assets Write off of fixed assets. Write off of fixed assets Property, Plant and Equipment Disclosure [Text Block] Property and Equipment, Net Property and Equipment, Net [Abstract] Net Income (Loss) Attributable to Parent [Abstract] Consolidated results of operations of ADVENTRX and SynthRx as if the acquisition Property and Equipment Net (Textual) [Abstract] Property and Equipment net (Textual) [Abstract] Property and equipment net. Property and Equipment Net (Additional Textual) [Abstract] Property and Equipment net (Additional Textual) [Abstract] Property and equipment net. Property, Plant and Equipment, Useful Life Estimated useful lives of the assets Impairment of Long-Lived Assets Held-for-use Impairment loss of asset Schedule of Property, Plant and Equipment [Table] Property, Plant and Equipment [Line Items] Transaction Related Expenses Transaction-related expenses Transaction related expenses. Class of Warrants Period Year of warrants Class of warrants period. Class Of Warrant Period Period of warrant Class of warrant period. Business Acquisition, Pro Forma Information [Table Text Block] Pro forma information presenting consolidated results of operations of ADVENTRX and SynthRx Warrant Expiration Date Warrants expiration period Expiration date of warrant. Class of Warrant or Right, Date from which Warrants or Rights Exercisable Warrants exercisable Description Of Fixed Combination Of Shares And Warrant Offered And Sold To Public Securities offered and sold combination Description of fixed combination of shares and warrant offered and sold to public. Reclassification, Policy [Policy Text Block] Reclassification of items Out of Accumulated Other Comprehensive Income Revenues [Abstract] Revenues: Acquisition (Additional Textual) [Abstract] Acquisition SynthRx (Additional Textual) [Abstract] Acquisition additional textual. Stockholders Equity (Additional Textual) [Abstract] Stockholders equity. Stockholders Equity (Additional Textual) [Abstract] Business Acquisition, Cost of Acquired Entity, Transaction Costs Transaction-related expenses Business Acquisition, Cost of Acquired Entity, Purchase Price [Abstract] Condensed consolidated financial information Financial Information After Acquisition [Table Text Block] Condensed consolidated financial information Financial information after acquisition. Stockholders' Equity Note, Stock Split, Conversion Ratio Number of shares as a fixed combination of common stock Employee Service Share-based Compensation, Aggregate Disclosures [Abstract] Estimated share-based compensation expense related to equity awards granted to employees and non-employee directors Pro Forma Information [Policy Text Block] Pro Forma Information Pro forma information. Investment Owned, at Cost Cost basis of short investments Other Assets, Noncurrent Other assets Employee-related Liabilities, Current Accrued compensation and payroll taxes Supplemental Cash Flow Information [Abstract] Supplementary Cash Flow Information Marketable Securities, Unrealized Gain (Loss) Unrealized gains on short term investment Net loss per common share - basic and diluted Acquisition of SynthRx [Abstract]