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 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 Common Stock, Shares Outstanding Entity Common Stock Shares Outstanding Entity Public Float Entity Public Float Contribution receivable from former parent. 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 Current assets held for sale Assets Of Disposal Group Including Discontinued Operation Current Restricted cash, current portion Restricted Cash And Cash Equivalents At Carrying Value Prepaid expenses Prepaid Expense Current And Noncurrent Other current assets Other Assets Current 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 Long-term assets held for sale Disposal Group Including Discontinued Operation Assets Noncurrent 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 Deferred revenue, current portion Deferred Revenue Current Current portion of long-term debt Long Term Debt Current Other short-term liabilities Other Liabilities Current Current liabilities held for sale Liabilities Of Disposal Group Including Discontinued Operation Current Total current liabilities Liabilities Current Deferred revenue, net of current portion Deferred Revenue Noncurrent 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; 21,605,716 and 20,271,737 shares issued and outstanding at December 31, 2017 and December 31, 2016, 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 Contribution receivable from former parent Contribution Receivable From Former Parent 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. 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 Of Goods Sold Research and development Research And Development Expense Selling, general and administrative Selling General And Administrative Expense Impairment of goodwill and intangible assets Asset Impairment Charges Loss from operations Operating Income Loss Other expense: Other Nonoperating Income Expense [Abstract] Other expense Other Nonoperating Income Expense Total other expense Nonoperating Income 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 income (loss) Net Income Loss Basic and diluted net income (loss) per share: Earnings Per Share Basic And Diluted [Abstract] Net loss from continuing operations Income Loss From Continuing Operations Per Basic And Diluted Share Net income from discontinued operations Income Loss From Discontinued Operations Net Of Tax Per Basic And Diluted Share Net income (loss) Earnings Per Share Basic And Diluted Weighted-average shares used to compute per share calculation Weighted Average Number Of Share Outstanding Basic And Diluted Statement Of Income And Comprehensive Income [Abstract] Net income (loss) Other comprehensive loss: Other Comprehensive Income Loss Net Of Tax Attributable To Parent [Abstract] Unrealized losses on available-for-sale investments, net Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax Total comprehensive income (loss) Comprehensive Income Net Of Tax Impairment of goodwill and intangible assets. Non cash interest expense. Increase decrease in assets and liabilities held for sale. Increase (decrease) in sales rebates and discounts. Settlement of contribution receivable from former parent Proceeds from long-term debt, net of issuance costs and modification fees. Statement Of Cash Flows [Abstract] Operating Activities Net Cash Provided By Used In Operating Activities Continuing Operations [Abstract] 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] Stock-based compensation Share Based Compensation Depreciation and amortization Depreciation Depletion And Amortization Gain on sale of Hyperimmune Business Disposal Group Not Discontinued Operation Gain Loss On Disposal Impairment of goodwill and intangible assets Impairment Of Goodwill And I Itangible Assets Non-cash interest expense Non Cash Interest Expense Other Other Operating Activities Cash Flow Statement Income taxes Deferred Income Taxes And Tax Credits Change in fair value of contingent consideration Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 Changes in operating assets and liabilities: Increase Decrease In Operating Capital [Abstract] Accounts receivable Increase Decrease In Accounts Receivable Inventories Increase Decrease In Inventories Income taxes Increase Decrease In Income Taxes 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 Change in assets and liabilities held for sale Increase Decrease In Assets And Liabilities Held For Sale Restricted cash Increase Decrease In Restricted Cash For Operating Activities Sales rebates and discounts Increase Decrease In Sales Rebates And Discounts Deferred revenue Increase Decrease In Deferred Revenue 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 proceeds 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] Transfer from former parent, prior to spin-off Proceeds From Contributions From Parent Settlement of contribution receivable from former parent Settlement Of Contribution Receivable From Former Parent Proceeds from long-term debt, net of issuance costs (and modification fees) Proceeds From Long Term Debt Net Of Issuance Costs And Modification Fees Common stock issued upon exercise of stock options Proceeds From Stock Options Exercised Value of equity awards withheld for tax liability Payments Related To Tax Withholding For Share Based Compensation Restricted cash related to loan agreement Proceeds From Repayments Of Restricted Cash Financing Activities Net cash provided by financing activities Net Cash Provided By Used In Financing Activities Continuing Operations (Decrease) increase 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 disclosures: Supplemental Cash Flow Information [Abstract] Contribution receivable from former parent Cash paid for interest Interest Paid Cash paid for taxes Income Taxes Paid Stockholders equity note spinoff transaction shares. Stockholders equity transfers from parent. Statement Of Stockholders Equity [Abstract] Statement [Table] Statement [Table] Equity Components Statement Equity Components [Axis] Equity Component Equity Component [Domain] Common Stock Common Stock [Member] Former parent investment in subsidiary. Former Parent Investment in Subsidiary Former Parent Investment In Subsidiary [Member] Additional Paid-In Capital Additional Paid In Capital [Member] Accumulated Deficit Retained Earnings [Member] Contribution Receivable from former parent. Contribution Receivable from Former Parent Contribution Receivable From Former Parent [Member] Accumulated Other Comprehensive Loss Accumulated Other Comprehensive Income [Member] Statement [Line Items] Statement [Line Items] Balance Balance (in shares) Shares Outstanding Capitalization upon spinoff Stockholders Equity Note Spinoff Transaction Capitalization upon spinoff (in shares) Stockholders Equity Note Spinoff Transaction Shares Transfers from former parent Stockholders Equity Transfers From Former Parent Unrealized losses on available- for-sale investments Common stock issued upon exercise of stock options Stock Issued During Period Value Stock Options Exercised Common stock issued upon exercise of stock options (in shares) Stock Issued During Period Shares Stock Options Exercised Common stock issued upon vesting of restricted stock units Stock Issued During Period Value Restricted Stock Award Gross Common stock issued upon vesting of restricted stock units (in shares) Stock Issued During Period Shares Restricted Stock Award Gross Stock-based compensation Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value Net income (loss) for the period Balance Balance (in shares) 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] Investments Debt And Equity Securities [Abstract] Investments Investment [Text Block] Inventory Disclosure [Abstract] Inventories Inventory Disclosure [Text Block] Property Plant And Equipment [Abstract] Property and Equipment, Net Property Plant And Equipment Disclosure [Text Block] Intangible Assets Net Excluding Goodwill [Abstract] Intangible Assets, Net Intangible Assets Disclosure [Text Block] Debt Disclosure [Abstract] Debt Debt Disclosure [Text Block] Earnings Per Share [Abstract] Net Income (Loss) Per Share Earnings Per Share [Text Block] Equity [Abstract] Equity Shareholders Equity And Share Based Payments [Text Block] Compensation And Retirement Disclosure [Abstract] 401(K) Savings Plan Pension And Other Postretirement Benefits Disclosure [Text Block] Leases [Abstract] Leases and Contingencies Leases Of Lessee Disclosure [Text Block] Income Tax Disclosure [Abstract] Income Taxes Income Tax Disclosure [Text Block] Use of Estimates Use Of Estimates Principles of Consolidation Consolidation Policy [Text Block] Cash Equivalents Cash And Cash Equivalents Policy [Text Block] Restricted Cash Cash And Cash Equivalents Restricted Cash And Cash Equivalents Policy Short term investment. Short-Term Investments Short Term Investment Policy [Text Block] Concentrations of Credit Risk Concentration Risk Credit Risk Accounts Receivable Receivables Policy [Text Block] Inventories Inventory Policy [Text Block] Property and Equipment Property Plant And Equipment Policy [Text Block] Fair Value of Financial Instruments Fair Value Measurement Policy Policy [Text Block] Product Sales, Rebates and other Discounts Revenue Recognition Revenue Reductions Debt Issuance Costs Debt Policy [Text Block] Revenue Recognition Revenue Recognition Policy [Text Block]