Entity Central Index Key Document And Entity Information [Abstract] Document And Entity Information [Abstract] Document Type Document Type Amendment Flag Amendment Flag Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Trading Symbol Trading Symbol Entity Registrant Name Entity Registrant Name Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Entity Common Stock, Shares Outstanding Entity Common Stock Shares Outstanding Sales rebates and discounts payable. Statement Of Financial Position [Abstract] ASSETS Assets [Abstract] Current assets: Assets Current [Abstract] Cash and cash equivalents Cash And Cash Equivalents At Carrying Value Short-term investments Short Term Investments Accounts receivable Accounts Receivable Net Current Inventories Inventory Net Prepaid expenses Prepaid Expense Current Other current assets Other Assets Current Restricted cash Restricted Cash And Cash Equivalents Total current assets Assets Current Restricted cash, net of current portion Restricted Cash And Cash Equivalents Noncurrent Property and equipment, net Property Plant And Equipment Net Intangible assets, net Finite Lived Intangible Assets Net Total assets Assets LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities And Stockholders Equity [Abstract] Current liabilities: Liabilities Current [Abstract] Accounts payable and other accrued liabilities Accounts Payable And Other Accrued Liabilities Current Accrued compensation Employee Related Liabilities Current Sales rebates and discounts payable Sales Rebates And Discounts Payable Current portion of long-term debt Long Term Debt Current Other short-term liabilities Other Liabilities Current Total current liabilities Liabilities Current Long-term debt, net Long Term Debt Noncurrent Other liabilities Other Liabilities Noncurrent Total liabilities Liabilities Stockholders' equity: Stockholders Equity [Abstract] Preferred stock: $0.001 par value; 15,000,000 shares authorized, zero shares issued or outstanding Preferred Stock Value Common stock: $0.001 par value; 500,000,000 shares authorized; 22,441,974 and 21,605,716 shares issued and outstanding at March 31, 2018 and December 31, 2017, respectively Common Stock Value Additional paid-in capital Additional Paid In Capital Common Stock Accumulated other comprehensive loss Accumulated Other Comprehensive Income Loss Net Of Tax Accumulated deficit Retained Earnings Accumulated Deficit Total stockholders' equity Stockholders Equity Total liabilities and stockholders' equity Liabilities And Stockholders Equity Preferred stock, par value Preferred Stock Par Or Stated Value Per Share Preferred stock, shares authorized Preferred Stock Shares Authorized Preferred stock, shares issued Preferred Stock Shares Issued Preferred stock, shares outstanding Preferred Stock Shares Outstanding 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 Collaborations revenue. Cost (Credit) of product sales. Income Statement [Abstract] Revenues: Sales Revenue Net [Abstract] Product sales Sales Revenue Goods Net Collaborations Collaborations Revenue Total revenues Sales Revenue Net Costs and expenses: Costs And Expenses [Abstract] Cost of product sales Cost Credit Of Product Sales Research and development Research And Development Expense Selling, general and administrative Selling General And Administrative Expense Loss from operations Operating Income Loss Other expense from continuing operations Other Nonoperating Expense Loss before income taxes Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest Benefit from income taxes Income Tax Expense Benefit Net loss from continuing operations Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest Discontinued operations (Note 2): Income Loss From Discontinued Operations Net Of Tax [Abstract] Income from discontinued operations, before income taxes Discontinued Operation Income Loss From Discontinued Operation Before Income Tax Income tax expense Discontinued Operation Tax Effect Of Discontinued Operation Income from discontinued operations Income Loss From Discontinued Operations Net Of Tax Net loss Net Income Loss Basic net loss per share: Earnings Per Share Basic [Abstract] Net loss from continuing operations Income Loss From Continuing Operations Per Basic Share Net income from discontinued operations Income Loss From Discontinued Operations Net Of Tax Per Basic Share Net loss Earnings Per Share Basic Weighted-average shares used to compute per share calculations Weighted Average Number Of Shares Outstanding Basic Statement Of Income And Comprehensive Income [Abstract] Net loss Other comprehensive loss: Other Comprehensive Income Loss Net Of Tax Attributable To Parent [Abstract] Unrealized gain (loss) on available-for-sale investments, net Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax Total comprehensive loss Comprehensive Income Net Of Tax Non cash interest expense. Increase decrease in assets and liabilities held for sale. Settlement of contribution receivable from former parent Payment of tax liability for vested equity awards. Statement Of Cash Flows [Abstract] Operating Activities Net Cash Provided By Used In Operating Activities Continuing Operations [Abstract] Adjustments to reconcile net loss to net cash used in operating activities: Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities [Abstract] Stock-based compensation Share Based Compensation Depreciation and amortization Depreciation Depletion And Amortization Non-cash interest expense Non Cash Interest Expense Other Other Noncash Income Expense Changes in operating assets and liabilities: Increase Decrease In Operating Capital [Abstract] Accounts receivable Increase Decrease In Accounts Receivable Inventories Increase Decrease In Inventories Prepaid expenses and other current assets Increase Decrease In Prepaid Deferred Expense And Other Assets Accounts payable, accrued compensation and other liabilities Increase Decrease In Other Accounts Payable And Accrued Liabilities Assets and liabilities held for sale Increase Decrease In Assets And Liabilities Held For Sale Net cash used in operating activities Net Cash Provided By Used In Operating Activities Continuing Operations Investing Activities Net Cash Provided By Used In Investing Activities Continuing Operations [Abstract] Proceeds from the maturity of investments Proceeds From Sale Maturity And Collections Of Investments Cash received from sale of Hyperimmune Business Proceeds From Divestiture Of Businesses Purchases of property and equipment Payments To Acquire Property Plant And Equipment Purchases of investments Payments To Acquire Investments Net cash provided by (used in) investing activities Net Cash Provided By Used In Investing Activities Continuing Operations Financing Activities Net Cash Provided By Used In Financing Activities Continuing Operations [Abstract] Settlement of contribution receivable from former parent Settlement Of Contribution Receivable From Former Parent Common stock issued upon exercise of stock options Proceeds From Stock Options Exercised Payment of tax liability for vested equity awards Payment Of Tax Liability For Vsted Equity Awards Net cash (used in) provided by financing activities Net Cash Provided By Used In Financing Activities Continuing Operations Increase in cash, cash equivalents, and restricted cash Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect Cash, cash equivalents, and restricted cash at beginning of period Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Cash, cash equivalents, and restricted cash at end of period Accounting Policies [Abstract] Nature of Business and Significant Accounting Policies Organization Consolidation Basis Of Presentation Business Description And Accounting Policies [Text Block] Discontinued Operations And Disposal Groups [Abstract] Sale of Hyperimmune Business Disposal Groups Including Discontinued Operations Disclosure [Text Block] Organization Consolidation And Presentation Of Financial Statements [Abstract] Collaboration Agreement Collaborative Arrangement Disclosure [Text Block] Fair Value Disclosures [Abstract] Fair Value Measurements Fair Value Disclosures [Text Block] Cash And Cash Equivalents [Abstract] Cash, Cash Equivalents, and Restricted Cash Cash And Cash Equivalents Disclosure [Text Block] Investments Debt And Equity Securities [Abstract] Investments Investment [Text Block] Inventory Disclosure [Abstract] Inventories Inventory Disclosure [Text Block] Debt Disclosure [Abstract] Debt Debt Disclosure [Text Block] Earnings Per Share [Abstract] Net Loss Per Share Earnings Per Share [Text Block] Equity [Abstract] Equity Shareholders Equity And Share Based Payments [Text Block] Revenue From Contract With Customer [Abstract] Revenue Reserves Revenue From Contract With Customer [Text Block] Income Tax Disclosure [Abstract] Income Taxes Income Tax Disclosure [Text Block] Use of Estimates Use Of Estimates Accounts Receivable Receivables Policy [Text Block] Revenue Recognition Revenue Recognition Policy [Text Block] Reclassification Prior Period Reclassification Adjustment Description Income Taxes Income Tax Policy [Text Block] New Accounting Pronouncements New Accounting Pronouncements Policy Policy [Text Block] Recently adopted standards. Recently Adopted Standards Recently Adopted Standards Policy Policy [Text Block] Summary of Components Attributable to Hyperimmune Business Presented as Income from Discontinued Operations in Unaudited Condensed Consolidated Statements of Operations Schedule Of Disposal Groups Including Discontinued Operations Income Statement Balance Sheet And Additional Disclosures [Text Block] Summary of Financial Assets Measured at Fair Value Fair Value Assets Measured On Recurring And Nonrecurring Basis Table [Text Block] Schedule of Cash, Cash Equivalents and Restricted Cash, Both Current and Long-term Portion Schedule Of Cash And Cash Equivalents Table [Text Block] Schedule of short-term investments Available For Sale Securities [Text Block] Schedule of Inventories Schedule Of Inventory Current Table [Text Block] Computation of Basic and Diluted Net Income (Loss) per Share Schedule Of Earnings Per Share Basic And Diluted Table [Text Block] Summary of Potentially Dilutive Shares Excluded from Calculation of Net Loss Per Share Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Text Block] Summary of Stock-based Compensation Expense Includes Amortization of Stock Options and Restricted Stock Units Granted Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Text Block] Assumptions used in Valuing the Stock Options Granted under Black-Scholes Valuation Model Schedule Of Share Based Payment Award Stock Options Valuation Assumptions Table [Text Block] Summary of Stock Option Activity Schedule Of Share Based Compensation Stock Options Activity Table [Text Block] Summary of RSU Activity Schedule Of Share Based Compensation Restricted Stock Units Award Activity Table [Text Block] Revenue of product revenue allowance and reserve categories. Summary of Product Revenue Allowance and Reserve Categories Revenue Of Product Revenue Allowance And Reserve Categories Table [Text Block] Number of revenue generating product. Nature Of Business [Line Items] Nature Of Business [Table] Nature Of Business [Table] Nature Of Business [Table] Range Range [Axis] Range Range [Member] Maximum Maximum [Member] Minimum [Member] Minimum [Member] Nature Of Business [Line Items] Nature Of Business [Line Items] Number of revenue-generating product Number Of Revenue Generating Product Eligible annual benefit under patient assistance savings program. Provision under patient assistance savings program. Maximum eligible annual benefit under the program Eligible Annual Benefit Under Patient Assistance Savings Program Maximum amount of benefit provided to customers Provision Under Patient Assistance Savings Program Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Table] Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Table] Disposal Group Classification Disposal Group Classification [Axis] Disposal Group Classification Disposal Group Classification [Domain] Hyperimmune business. Hyperimmune Business Hyperimmune Business [Member] Minimum Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] Business sale agreement date Disposal Date1 Business sale completion date Liquidation Date1 Disposal group including discontinued operation cash consideration in escrow account. Disposal group including discontinued operation additional consideration based on gross profit milestone. Disposal group including discontinued operation additional consideration based on collection of receivables milestone. Cash payment received Disposal Group Including Discontinued Operation Consideration Escrow receivable Disposal Group Including Discontinued Operation Cash Consideration In Escrow Account Additional potential milestone payment related to gross profit Disposal Group Including Discontinued Operation Additional Consideration Based On Gross Profit Milestone Additional potential milestone payment related to accounts receivable Disposal Group Including Discontinued Operation Additional Consideration Based On Collection Of Receivables Milestone Net gain on sale of business Disposal Group Not Discontinued Operation Gain Loss On Disposal Receivables amount recorded in other income from discontinued operations Disposal Group Including Discontinued Operation Other Income Disposal group including discontinued operation product sales. Disposal group including discontinued operation research and development. Disposal group including discontinued operation revenues. Disposal group including discontinued operation cost and expenses. Revenues: Disposal Group Including Discontinued Operation Revenues [Abstract] Product sales Disposal Group Including Discontinued Operation Product Sales Total revenues Disposal Group Including Discontinued Operation Revenue Costs and expenses: Disposal Group Including Discontinued Operation Cost And Expenses [Abstract] Cost of product sales Disposal Group Including Discontinued Operation Costs Of Goods Sold Research and development Disposal Group Including Discontinued Operation Research And Development Selling, general and administrative Disposal Group Including Discontinued Operation General And Administrative Expense Income from operations Disposal Group Including Discontinued Operation Operating Income Loss Other income Income from discontinued operations, before income taxes Amortization discontinued operations. Depreciation discontinued operations. Other non-cash operating activities discontinued operations. Other non-cash investing activities discontinued operations. Collection of certain accounts receivable transferred to Saol Proceeds From Sale And Collection Of Notes Receivable Amortization Amortization Discontinued Operations Depreciation Depreciation Discontinued Operations Capital expenditures Capital Expenditure Discontinued Operations Other non-cash operating activities Other Noncash Operating Activities Discontinued Operations Other non-cash investing activities Other Noncash Investing Activities Discontinued Operations Schedule Of Collaborative Arrangements And Noncollaborative Arrangement Transactions [Table] Schedule Of Collaborative Arrangements And Noncollaborative Arrangement Transactions [Table] Type of Arrangement and Non-arrangement Transactions Type Of Arrangement [Axis] Arrangements and Non-arrangement Transactions Arrangements And Nonarrangement Transactions [Member] MorphoSys agreement. MorphoSys Agreement Morphosys Agreement [Member] Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] Research and development expenses Revenue Deferred revenue Deferred Revenue Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table]