Fair Value Disclosures [Abstract] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Asset Class [Axis] Asset Class [Axis] Fair Value by Asset Class [Domain] Asset Class [Domain] U.S. Agency Issued Mortgage-backed Securities - Variable Rate Mortgage-backed Securities, Issued by Private Enterprises [Member] U.S. Agency Notes and Bonds - Fixed Rate Agency Securities [Member] SBA Loan Pools - Variable Rate Loan Pools [Member] Loan pools. Municipal Bonds - VRDN Municipal Bonds [Member] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value Hierarchy [Domain] Level 1 Fair Value, Inputs, Level 1 [Member] Level 2 Fair Value, Inputs, Level 2 [Member] 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] Fair value of marketable securities Trading Securities Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Intrinsic value of options exercised Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value Weighted-average fair value of options exercised Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Weighted Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Weighted Average Grant Date Fair Value Risks and Uncertainties [Abstract] Concentration Risk [Table] Concentration Risk [Table] Concentration Risk Type [Axis] Concentration Risk Type [Axis] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Customer Concentration Risk Customer Concentration Risk [Member] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Sales Revenue, Goods, Gross Sales Revenue, Goods, Gross [Member] Sales Revenue, Goods, Gross [Member] [Member] Accounts Receivable Accounts Receivable [Member] Major Customers [Axis] Customer [Axis] Name of Major Customer [Domain] Customer [Domain] Customer 1 Customer One [Member] Customer One [Member] Customer 2 Customer Two [Member] Customer Two [Member] Customer 3 Customer Three [Member] Customer Three [Member] Customer 4 Customer Four [Member] Customer Four [Member] Concentration Risk [Line Items] Concentration Risk [Line Items] Concentration risk, percentage Concentration Risk, Percentage Concentration risk, number of major customers exceeding 10 percent threshhold Concentration risk, number of major customers exceeding 10 percent threshhold Concentration risk, number of major customers exceeding 10 percent threshhold Income Tax Disclosure [Abstract] Current: Current Income Tax Expense (Benefit), Continuing Operations [Abstract] Federal Current Federal Tax Expense (Benefit) State and other Current State and Local Tax Expense (Benefit) Total current income tax expense Current Income Tax Expense (Benefit) Deferred: Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] Federal Deferred Federal Income Tax Expense (Benefit) State Deferred State and Local Income Tax Expense (Benefit) Deferred income tax benefit (expense) Deferred Other Tax Expense (Benefit) Total income tax benefit (expense) Income Tax Expense (Benefit) Debt Disclosure [Abstract] Line of Credit Facility [Table] Line of Credit Facility [Table] Lender Name [Axis] Lender Name [Axis] Line of Credit Facility, Lender [Domain] Line of Credit Facility, Lender [Domain] SunTrust Bank SunTrust Bank [Member] SunTrust Bank [Member] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Line of Credit Line of Credit [Member] Debt Instrument, Redemption, Period [Axis] Debt Instrument, Redemption, Period [Axis] Debt Instrument, Redemption, Period [Domain] Debt Instrument, Redemption, Period [Domain] Credit Facility, Fifth Amended and Restated Loan Agreement, the Agreement, August 2011 Credit Facility, Fifth Amended and Restated Loan Agreement, the Agreement, August 2011 [Member] Credit Facility, Fifth Amended and Restated Loan Agreement, the Agreement, August 2011 [Member] Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Revolving Credit Facility Revolving Credit Facility [Member] Credit Facility, by Amendment Date [Axis] Credit Facility, by Amendment Date [Axis] Credit Facility, by Amendment Date [Axis] Credit Facility, by Amendment Date [Domain] Credit Facility, by Amendment Date [Domain] [Domain] for Credit Facility, by Amendment Date [Axis] Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Revolving line of credit Long-term Line of Credit, Noncurrent Line of credit, maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Line of credit, maximum borrowing capacity upon satisfaction of certain conditions Line of Credit Facility, Maximum Borrowing Capacity Upon Satisfaction of Certain Conditions Line of Credit Facility, Maximum Borrowing Capacity Upon Satisfaction of Certain Conditions Interest rate, minimum Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum Interest rate, maximum Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum Debt instrument, interest rate at end of period Debt Instrument, Interest Rate, Effective Percentage Line of credit, unused capacity, commitment fee percentage Line of Credit Facility, Unused Capacity, Commitment Fee Percentage Deferred finance costs Deferred Finance Costs, Own-share Lending Arrangement, Issuance Costs, Net Revenues [Abstract] Schedule of net product revenues by product Revenue from External Customers by Products and Services [Table Text Block] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Title of Individual [Axis] Title of Individual [Axis] Title of Individual with Relationship to Entity [Domain] Relationship to Entity [Domain] Employee Employee [Member] Employee [Member] Nonemployee Nonemployee [Member] Nonemployee [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based compensation Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures Statement of Cash Flows [Abstract] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Net income (loss) Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Adjustments to reconcile net income (loss) to net cash flows provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation and amortization expense Depreciation, Depletion and Amortization Deferred tax expense (benefit) Deferred Income Tax Expense (Benefit) Share-based compensation Share-based Compensation Excess tax expense (benefit) derived from exercise of stock options Excess Tax Benefit from Share-based Compensation, Operating Activities Noncash interest expense Amortization of Financing Costs Noncash investment gains Other Nonoperating Gains (Losses) Net changes in assets and liabilities affecting operating activities, net of effect of business combination: Increase (Decrease) in Operating Capital [Abstract] Accounts receivable Increase (Decrease) in Accounts Receivable Inventories Increase (Decrease) in Inventories Prepaid, other current assets and other assets Increase (Decrease) in Other Operating Assets Accounts payable and other current liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities Other long-term liabilities Increase (Decrease) in Other Noncurrent Liabilities Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Additions to property and equipment Payments to Acquire Property, Plant, and Equipment Cash paid for acquisitions Payments to Acquire Businesses, Gross Additions to intangible assets Payments to Acquire Intangible Assets Proceeds from sale of marketable securities Proceeds from Sale of Short-term Investments Purchases of marketable securities Payments to Acquire Marketable Securities Net cash used in 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 borrowings on line of credit Proceeds from (Repayments of) Lines of Credit Repurchase of common shares Payments for Repurchase of Common Stock Cash settlement of contingent consideration Payments of Financing Costs Exercise of stock options Proceeds from Stock Options Exercised Sale of subsidiary shares to noncontrolling interest Proceeds from Noncontrolling Interests Excess tax (expense) benefit derived from exercise of stock options Excess Tax Benefit from Share-based Compensation, Financing Activities Net cash used in financing activities Net Cash Provided by (Used in) Financing Activities Net decrease in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Cash and cash equivalents, beginning of year Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents, end of year Supplemental disclosure of cash flow information: Supplemental Cash Flow Information [Abstract] Net cash paid during the year for: Cash Paid During Year For [Abstract] Cash Paid During Year For [Abstract] Interest Interest Paid Income taxes Income Taxes Paid, Net Noncash investing and financing activities: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Change in unpaid invoices for purchases of intangibles Purchases of Intangible Assets Incurred But Not Yet Paid Purchases of Intangible Assets Incurred But Not Yet Paid Schedule of revenues concentration from major customers Schedules of Concentration of Risk, by Risk Factor [Table Text Block] Leases [Abstract] Schedule of future minimum lease payments for operating leases Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] 2017 Operating Leases, Future Minimum Payments Due, Next Twelve Months 2018 Operating Leases, Future Minimum Payments, Due in Two Years 2019 Operating Leases, Future Minimum Payments, Due in Three Years 2020 Operating Leases, Future Minimum Payments, Due in Four Years 2021 and thereafter Operating Leases, Future Minimum Payments, Due in Five Years and Thereafter Operating Leases, Future Minimum Payments, Due in Five Years and Thereafter Total future minimum lease payments Operating Leases, Future Minimum Payments Due Goodwill and Intangible Assets Disclosure [Abstract] Schedule of intangible assets Schedule of Finite-Lived Intangible Assets [Table Text Block] Schedule of expected amortization expense of intangible assets Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Award Type [Axis] Award Type [Axis] Equity Award [Domain] Equity Award [Domain] Restricted Stock Restricted Stock [Member] Number of shares Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Nonvested, beginning of period, shares Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Shares granted, shares Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Shares vested, shares Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Shares forfeited, shares Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Nonvested, end of period, shares Weighted- average grant-date fair value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Nonvested, beginning of period, weighted-average grant-date fair value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Shares granted, weighted-average grant-date fair value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Shares vested, weighted-average grant-date fair value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Shares forfeited, weighted-average grant-date fair value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Nonvested, end of period, weighted-average grant-date fair value Debt Debt Disclosure [Text Block] Inventory Disclosure [Abstract] Inventories Inventory Disclosure [Text Block] Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Product and License Rights Product and License Rights [Member] Product and License Rights [Member] Patents Patents [Member] Trademarks Trademarks [Member] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Intangible assets, gross Finite-Lived Intangible Assets, Gross Accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Intangible assets, net Finite-Lived Intangible Assets, Net Income Statement [Abstract] Revenues: Net product revenue Sales Revenue, Goods, Net Other revenue Other Revenue, Net Net revenues Revenue, Net Costs and expenses: Costs and Expenses [Abstract] Cost of products sold Cost of Goods Sold Selling and marketing Selling and Marketing Expense Research and development Research and Development Expense General and administrative General and Administrative Expense Amortization Amortization of Intangible Assets Total costs and expenses Costs and Expenses Operating income (loss) Operating Income (Loss) Interest income Investment Income, Interest Interest expense Interest Expense Income (loss) before income taxes Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Income tax (expense) benefit Net income (loss) Net loss at subsidiary attributable to noncontrolling interests Net Income (Loss) Attributable to Noncontrolling Interest Net income (loss) attributable to common shareholders Net Income (Loss) Attributable to Parent Earnings (loss) per share attributable to common shareholders: Earnings Per Share [Abstract] Basic (in USD per share) Earnings Per Share, Basic Diluted (in USD per share) Earnings Per Share, Diluted Weighted-average common shares outstanding: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Basic (in shares) Weighted Average Number of Shares Outstanding, Basic Diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Comprehensive income (loss) attributable to common shareholders Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Net loss at subsidiary attributable to noncontrolling interests Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest Total comprehensive income (loss) Comprehensive Income (Loss), Net of Tax, Attributable to Parent Revenues Additional Financial Information Disclosure [Text Block] Stockholders' Equity Note [Abstract] Class of Treasury Stock [Table] Class of Treasury Stock [Table] Share Repurchase Program [Axis] Share Repurchase Program [Axis] Share Repurchase Program [Domain] Share Repurchase Program [Domain] Share Repurchase Program Authorized in 2010 Share Repurchase Program Authorized in 2010 [Member] Share Repurchase Program Authorized in 2010 [Member] Shares Repurchase Activity, Type [Axis] Shares Repurchase Activity, Type [Axis] Shares Repurchase Activity, Type [Axis] Shares Repurchase Activity, Type [Domain] Shares Repurchase Activity, Type [Domain] [Domain] for Shares Repurchase Activity, Type [Axis] Shares Repurchase, All, Except Settlement of Tax Liabilities Related to Exercise of Stock Options Shares Repurchase, All, Except Settlement of Tax Liabilities Related to Exercise of Stock Options [Member] Shares Repurchase, All, Except Settlement of Tax Liabilities Related to Exercise of Stock Options [Member] Equity, Class of Treasury Stock [Line Items] Equity, Class of Treasury Stock [Line Items] Share repurchase program, number of shares authorized to be repurchased Stock Repurchase Program, Authorized Amount Repurchase of common shares, shares Stock Repurchased During Period, Shares Repurchase of common shares, value Stock Repurchased During Period, Value Exercise of options and related tax benefit Noncontrolling Interest, Increase from Sale of Parent Equity Interest Noncontrolling interest, ownership percentage by parent Noncontrolling Interest, Ownership Percentage by Parent Payments to acquire interest in subsidiaries Payments to Acquire Interest in Subsidiaries and Affiliates Loans Forgiven in Exchange For Share Issued, Amount Loans Forgiven in Exchange For Share Issued, Amount Loans Forgiven in Exchange For Share Issued, Amount Schedule of deferred tax assets and liabilities, net Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Schedule of federal and state net operating loss carryforwards Summary of Operating Loss Carryforwards [Table Text Block] Schedule of the components of income tax benefit (expense) Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Schedule of the components of deferred tax benefit (expense) Schedule of the Components of Deferred Tax Expense (Benefit) [Table Text Block] Schedule of the Components of Deferred Tax Expense (Benefit) [Table Text Block] Schedule of effective tax rate reconciliation Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Schedule of share-based compensation expense Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block] Schedule of stock options activity Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] Schedule of stock options activity, additional disclosures Schedule of Stock Option Activity, Additional Disclosures [Table Text Block] Schedule of Stock Option Activity, Additional Disclosures [Table Text Block] Schedule of restricted stock activity Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block] Manufacturing and Supply Agreements [Abstract] Manufacturing and Supply Agreements [Abstract] Manufacturing and Supply Agreement [Table] Manufacturing and Supply Agreement [Table] Manufacturing and Supply Agreement [Table] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Manufacturing and Supply Agreement [Line Items] Manufacturing and Supply Agreement [Line Items] [Line Items] for Manufacturing and Supply Agreement [Table] Manufacturing agreements, number of primary suppliers for each product Manufacturing agreements, number of primary suppliers for each product Manufacturing agreements, number of primary suppliers for each product Accounting Policies [Abstract] Schedule of intangible assets, useful lives Schedule of Finite-Lived Intangible Assets UseFul Lives [Table Text Block] Schedule of Finite-Lived Intangible Assets UseFul Lives [Table Text Block] Schedule of Operating Leased Assets [Table] Schedule of Operating Leased Assets [Table] Name of Property [Axis] Name of Property [Axis] Name of Property [Domain] Name of Property [Domain] Corporate Headquarters Corporate Headquarters [Member] Corporate Headquarters [Member] CET Life Sciences Center CET Life Sciences Center [Member] CET Life Sciences Center [Member] Operating Leased Assets [Line Items] Operating Leased Assets [Line Items] Area of Real Estate Property Area of Real Estate Property Segment Reporting [Abstract] Segment Reporting [Abstract] Number of operating segments Number of Operating Segments Net revenues from customers outside the United States Revenues Distribution costs Shipping, Handling and Transportation Costs Advertising costs Advertising Expense Operating loss carryforwards Operating Loss Carryforwards Employment Agreements [Abstract] Employment Agreements [Abstract] Employment Agreements Employment Agreements [Text Block] Employment Agreements Business Combinations [Abstract] Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Products and Services [Axis] Products and Services [Axis] Products and Services [Domain] Products and Services [Domain] Vaprisol Vaprisol [Member] Vaprisol [Member] Product, Ethyol Product, Ethyol [Member] Product, Ethyol [Member] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Omeclamox-Pak Omeclamox-Pak [Member] Omeclamox-Pak [Member] Ethyol Ethyol [Member] Ethyol [Member] Methotrexate Methotrexate [Member] Methotrexate [Member] Type of Arrangement and Non-arrangement Transactions [Axis] Type of Arrangement and Non-arrangement Transactions [Axis] Arrangements and Non-arrangement Transactions [Domain] Arrangements and Non-arrangement Transactions [Domain] Amended International Agreement Amended International Agreement [Member] Amended International Agreement [Member] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] Pernix Therapeutics Pernix Therapeutics [Member] Pernix Therapeutics [Member] Business Acquisition [Line Items] Business Acquisition [Line Items] Upfront payment Business Combination, Upfront Payment Business Combination, Upfront Payment Additional upfront payments Business Combination, Aggregate Upfront Payments Business Combination, Aggregate Upfront Payments Payments for contingent consideration Payments for Contingent Consideration Payments for Contingent Consideration Gain on contingent consideration Recognized Gain (Loss) on Contingent Consideration Recognized Gain (Loss) on Contingent Consideration Acquired contingent liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Net revenues Royalty payments based on percentage over gross profits Business Combination, Royalties, Range of Payment Over Gross Profits, Percentage Business Combination, Royalties, Range of Payment Over Gross Profits, Percentage Other revenue, potential upfront payment related to product sales Revenue Recognition, Potential Upfront Payment Related to Product Sales Revenue Recognition, Potential Upfront Payment Related to Product Sales Payments to acquire businesses Liabilities incurred Business Combination, Consideration Transferred, Liabilities Incurred Stock issued during period, acquisitions (in shares) Stock Issued During Period, Shares, Acquisitions Stock issued during period, acquisitions Stock Issued During Period, Value, Acquisitions Principles of Consolidation Consolidation, Policy [Policy Text Block] Use of Estimates Use of Estimates, Policy [Policy Text Block] Segment Reporting Segment Reporting, Policy [Policy Text Block] Fair Value of Financial Instruments Fair Value of Financial Instruments, Policy [Policy Text Block] Cash and Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Marketable Securities Marketable Securities, Policy [Policy Text Block] Accounts Receivable Trade and Other Accounts Receivable, Policy [Policy Text Block] Inventories Inventory, Policy [Policy Text Block] Prepaid and Other Current Assets Prepaids and Other Current Assets, Policy [Policy Text Block] Prepaids and Other Current Assets, Policy [Policy Text Block] Property and Equipment Property, Plant and Equipment, Policy [Policy Text Block] Intangible Assets Intangible Assets, Finite-Lived, Policy [Policy Text Block] Impairment of Long-Lived Assets Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block] Revenue Recognition Revenue Recognition, Policy [Policy Text Block] Cost of Products Sold Cost of Sales, Policy [Policy Text Block] Selling and Marketing Expense Selling and Marketing Expense, Policy [Policy Text Block] Selling and Marketing Expense, Policy [Policy Text Block] Distribution Costs Shipping and Handling Cost, Policy [Policy Text Block] Advertising Costs Advertising Costs, Policy [Policy Text Block] Research and Development Research and Development Expense, Policy [Policy Text Block] Income Taxes Income Tax, Policy [Policy Text Block] Comprehensive Income (Loss) Comprehensive Income, Policy [Policy Text Block] Earnings (Loss) Per Share Earnings Per Share, Policy [Policy Text Block] Share-Based Payments Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] Collaborative Agreements Collaborative Arrangement, Accounting Policy [Policy Text Block] Recent Accounting Guidance New Accounting Pronouncements, Policy [Policy Text Block] Quarterly Financial Information Disclosure [Abstract] Quarterly Financial Information (Unaudited) Quarterly Financial Information [Text Block] Shareholders' Equity Stockholders' Equity Note Disclosure [Text Block] Property, Plant and Equipment [Abstract] Depreciation, including amortization related to leasehold improvements Depreciation, Including Amortization Related to Leasehold Improvements Depreciation, Including Amortization Related to Leasehold Improvements Stock-Based Compensation Plans Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Operating income (loss) Net income (loss) attributable to common shareholders Earnings per share attributable to common shareholders Schedule of fair value of financial instruments by level in hierarchy Fair Value Measurements, Recurring and Nonrecurring [Table Text Block] Intellectual property intangible assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets Inventories Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory Acquired contingent liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Contingent Liability Contingent consideration obligation Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Contingent Consideration Obligations Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Contingent Consideration Obligations Total net assets acquired Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net Other Liabilities, Current [Abstract] Other Current Liabilities Other Liabilities Disclosure [Text Block] Organization, Consolidation and Presentation of Financial Statements [Abstract] Entities [Table] Entities [Table] Cumberland Emerging Technologies, Inc (CET) Cumberland Emerging Technologies, Inc [Member] Cumberland Emerging Technologies, Inc [Member] Counterparty Name [Axis] Counterparty Name [Axis] Counterparty Name [Domain] Counterparty Name [Domain] Harbin Gloria Pharmaceuticals Co Harbin Gloria Pharmaceuticals Co [Member] Harbin Gloria Pharmaceuticals Co [Member] Entity Information [Line Items] Entity Information [Line Items] Noncontrolling Interest [Abstract] Noncontrolling Interest [Abstract] Net loss at subsidiary allocated to noncontrolling interests Schedule of inventories, current Schedule of Inventory, Current [Table Text Block] Statement of Financial Position [Abstract] ASSETS Assets [Abstract] Current assets: Assets, Current [Abstract] Cash and cash equivalents Marketable securities Marketable Securities, Current Accounts receivable, net of allowances Accounts Receivable, Net, Current Inventories Inventory, Net Prepaid and other current assets Prepaid Expense and Other Assets, Current Total current assets Assets, Current Property and equipment, net Property, Plant and Equipment, Net Intangible assets, net Deferred tax assets Deferred Tax Assets, Net, Noncurrent Other assets Other Assets, Noncurrent Total assets Assets LIABILITIES AND EQUITY Liabilities and Equity [Abstract] Current liabilities: Liabilities, Current [Abstract] Accounts payable Accounts Payable, Current Other current liabilities Accrued Liabilities, Current Total current liabilities Liabilities, Current Other long-term liabilities Other Liabilities, Noncurrent Total liabilities Liabilities Commitments and contingencies Commitments and Contingencies Equity: Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Shareholders’ equity: Stockholders' Equity Attributable to Parent [Abstract] Common stock – no par value; 100,000,000 shares authorized; 16,074,176 and 16,379,501 shares issued and outstanding as of December 31, 2016 and 2015, respectively Common Stock, Value, Outstanding Retained earnings Retained Earnings (Accumulated Deficit) Total shareholders’ equity Stockholders' Equity Attributable to Parent Noncontrolling interests Stockholders' Equity Attributable to Noncontrolling Interest Total equity Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Total liabilities and equity Liabilities and Equity Number of shares Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Outstanding, beginning of period, shares Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Options granted, shares Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Options exercised, shares Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Options forfeited or expired, shares Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period Outstanding, end of period, shares Options, exerciseable, end of period, shares Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Weighted-average exercise price per share Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Outstanding, beginning of period, weighted-average exercise price per share (in USD per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Options granted, weighted-average exercise price per share (in USD per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Options exercised, weighted-average exercise price per share (in USD per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Options forfeited or expired, weighted-average exercise price per share (in USD per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price Outstanding, end of period, weighted-average exercise price per share (in USD per share) Exercisable, end of period, weighted-average exercise price per share (in USD per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Outstanding, end of period, weighted-average remaining contractual term Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Exercisable, end of period, weighted-average remaining contractual term Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Outstanding, end of period, aggregate intrinsic value Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Exercisable, end of period, aggregate intrinsic value Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Valuation and Qualifying Accounts [Abstract] Valuation and Qualifying Accounts Disclosure [Table] Valuation and Qualifying Accounts Disclosure [Table] Valuation Allowances and Reserves Type [Axis] Valuation Allowances and Reserves Type [Axis] Valuation Allowances and Reserves [Domain] Valuation Allowances and Reserves [Domain] Allowance for uncollectible amounts, cash discounts, chargebacks, and credits issued for damaged products: Allowance for Doubtful Accounts, Current [Member] Valuation allowance for deferred tax assets: Valuation Allowance of Deferred Tax Assets [Member] Valuation and Qualifying Accounts Disclosure [Line Items] Valuation and Qualifying Accounts Disclosure [Line Items] Movement in Valuation Allowances and Reserves [Roll Forward] Movement in Valuation Allowances and Reserves [Roll Forward] Balance at beginning of period Valuation Allowances and Reserves, Balance Charged to costs and expenses Valuation Allowances and Reserves, Charged to Cost and Expense Charged to other accounts Valuation Allowances and Reserves, Charged to Other Accounts Deductions Valuation Allowances and Reserves, Deductions Balance at end of period Deferred tax (expense) benefit, excluding items below Deferred Income Tax Expense (Benefit), Before Reconciling Items Deferred Income Tax Expense (Benefit), Before Reconciling Items Inventory Deferred Income Tax Expense (Benefit), Inventory Write-downs Deferred Income Tax Expense (Benefit), Inventory Write-downs Operating loss carryforwards Deferred Income Tax Expense (Benefit), Creation (Utilization) of Operating Loss Carryforwards Deferred Income Tax Expense (Benefit), Creation (Utilization) of Operating Loss Carryforwards Tax credit carryforwards Deferred Income Tax Expense (Benefit), Creation (Utilization) of Tax Credit Carryforwards Deferred Income Tax Expense (Benefit), Creation (Utilization) of Tax Credit Carryforwards Valuation allowance due to changes in net deferred tax asset balances Deferred Income Tax Expense (Benefit), Change in Valuation Allowance due to Changes in Net Deferred Tax Asset Balances Deferred Income Tax Expense (Benefit), Change in Valuation Allowance due to Changes in Net Deferred Tax Asset Balances Deductible equity awards Deferred Income Tax Expense (Benefit), Compensation and Benefits, Share-based Compensation Cost Deferred Income Tax Expense (Benefit), Compensation and Benefits, Share-based Compensation Cost Allowance for accounts receivable Deferred Income Tax Expense (Benefit), Allowance for Accounts Receivable Deferred Income Tax Expense (Benefit), Allowance for Accounts Receivable Deferred charges Deferred Income Tax Expense (Benefit), Deferred Charges Deferred Income Tax Expense (Benefit), Deferred Charges Reserve for expired product Deferred Income Tax Expense (Benefit), Reserve for Expired Products Deferred Income Tax Expense (Benefit), Reserve for Expired Products Intangible assets Deferred Income Tax Expense (Benefit), Intangible Assets Deferred Income Tax Expense (Benefit), Intangible Assets Fair Value of Financial Instruments Fair Value Disclosures [Text Block] Raw materials and work in process Inventory, Raw Materials, Net of Reserves Consigned inventory Other Inventory, Materials, Supplies and Merchandise under Consignment, Gross Finished goods Inventory, Finished Goods, Net of Reserves Total inventories Class of Warrant or Right [Table] Class of Warrant or Right [Table] Class of Warrant or Right [Axis] Class of Warrant or Right [Axis] Class of Warrant or Right [Domain] Class of Warrant or Right [Domain] Warrants, Issued in Consideration of 2006 Credit Facility Amendment Warrants, Issued in Consideration of 2006 Credit Facility Amendment [Member] Warrants, Issued in Consideration of 2006 Credit Facility Amendment [Member] Warrants, Issued in Consideration of 2009 Credit Facility Amendment Warrants, Issued in Consideration of 2009 Credit Facility Amendment [Member] Warrants, Issued in Consideration of 2009 Credit Facility Amendment [Member] Class of Warrant or Right [Line Items] Class of Warrant or Right [Line Items] Warrants, number of shares called by warrants Class of Warrant or Right, Number of Securities Called by Warrants or Rights Warrants, exercise price Class of Warrant or Right, Exercise Price of Warrants or Rights Warrants, expiration date Class of Warrant or Right, Expiration Date Class of Warrant or Right, Expiration Date 2017 Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months 2018 Finite-Lived Intangible Assets, Amortization Expense, Year Two 2019 Finite-Lived Intangible Assets, Amortization Expense, Year Three 2020 Finite-Lived Intangible Assets, Amortization Expense, Year Four 2021 and thereafter Finite-Lived Intangible Assets, Amortization Expense, Year Five and After Finite-Lived Intangible Assets, Amortization Expense, Year Five and After Rebates, product returns, administrative fees and service fees Product Sales-Related Liabilities, Current Product Sales-Related Liabilities, Current Employee wages and benefits Employee-related Liabilities, Current Other Other Liabilities, Current Total other current liabilities Revenue from External Customers by Products and Services [Table] Products and Services [Table] Geographical [Axis] Geographical [Axis] Geographical [Domain] Geographical [Domain] Outside US Outside United States [Member] Outside United States [Member] Collaborative Arrangements and Non-collaborative Arrangements [Axis] Collaborative Arrangements and Non-collaborative Arrangement Transactions [Domain] Collaborative Arrangement, Federal Small Business Grant Programs Collaborative Arrangement, Federal Small Business Grant Programs [Member] Collaborative Arrangement, Federal Small Business Grant Programs [Member] Accounts Receivable, Allowances by Component [Axis] Accounts Receivable, Allowances by Component [Axis] Accounts Receivable, Allowances by Component [Axis] Accounts Receivable, Allowances by Component [Domain] Accounts Receivable, Allowances by Component [Domain] [Domain] for Accounts Receivable, Allowances by Component [Axis] Product Sales Related Allowances - Chargebacks, Cash Discounts and Damaged Goods Chargebacks, Cash Discounts and Damaged Goods [Member] Chargebacks, Cash Discounts and Damaged Goods [Member] Product, Caldolor Caldolor [Member] Caldolor. Product, Acetadote, Generic Product, Acetadote, Generic [Member] Product, Acetadote, Generic [Member] Accrued Liabilities, Current, by Component [Axis] Accrued Liabilities, Current, by Component [Axis] Accrued Liabilities, Current, by Component [Axis] Accrued Liabilities, Current, by Component [Domain] Accrued Liabilities, Current, by Component [Domain] [Domain] for Accrued Liabilities, Current, by Component [Axis] Product Sales Related Accruals - Rebates, Product Returns, Administrative Fees and Service Fees Product Sales Related Accruals, Rebates, Product Returns, Administrative Fees and Service Fees [Member] Product sales related accruals, rebates, product returns, administrative fees and service fees [Member] Revenue from External Customer [Line Items] Revenue from External Customer [Line Items] Product Revenues Product Revenues [Abstract] Product Revenues [Abstract] Accounts receivable, allowances, current Allowance for Doubtful Accounts Receivable, Current Accrued liabilities, current Other Revenues Other Revenues [Abstract] Other Revenues [Abstract] Other revenue, upfront payment Revenue Recognition, Upfront Payment Revenue Recognition, Upfront Payment Other revenue, potential upfront payments related to regulatory approval Revenue Recognition, Potential Upfront Payments Related to Regulatory Approval Revenue Recognition, Potential Upfront Payments Related to Regulatory Approval Cumulative upfront payment Revenue Recognition, Cumulative Upfront Payment Revenue Recognition, Cumulative Upfront Payment Revenue related to milestone payments Revenue Recognition, Related to Milestone Payments Revenue Recognition, Related to Milestone Payments Other revenues, grants Revenue from Grants Schedule of Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Domain] Property, Plant and Equipment, Type [Domain] Computer Equipment Computer Equipment [Member] Office Equipment Office Equipment [Member] Furniture and Fixtures Furniture and Fixtures [Member] Leasehold Improvements Leasehold Improvements [Member] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Property and equipment, gross Property, Plant and Equipment, Gross Less: accumulated depreciation and amortization Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Total property and equipment, net Property and equipment, useful life Property, Plant and Equipment, Useful Life Property and equipment, useful life (Textual) Property and Equipment, useful life (Textual) Property and Equipment, useful life (Textual) Organization Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Intangible Assets Intangible Assets Disclosure [Text Block] Significant Accounting Policies Significant Accounting Policies [Text Block] Compensation and Retirement Disclosure [Abstract] Employee Benefit Plans Pension and Other Postretirement Benefits Disclosure [Text Block] Operating Loss Carryforwards [Table] Operating Loss Carryforwards [Table] Income Tax Authority [Axis] Income Tax Authority [Axis] Income Tax Authority [Domain] Income Tax Authority [Domain] Federal Internal Revenue Service (IRS) [Member] State State and Local Jurisdiction [Member] Operating Loss Carryforwards, Nature [Axis] Operating Loss Carryforward, Nature [Axis] Operating Loss Carryforward, Nature of Item [Axis] Operating Loss Carryforwards, Nature [Domain] Operating Loss Carryforward, Nature [Domain] [Domain] for Operating Loss Carryforward, Nature of Item [Axis] Charitable, Foreign Tax Credit and AMT Carryforward Charitable, Foreign Tax Credit and AMT Carryforward [Member] Charitable, Foreign Tax Credit and AMT Carryforward [Member] Orphan Drug and Research and Development Tax Credit Orphan Drug and Research and Development Tax Credit [Member] Orphan Drug and Research and Development Tax Credit [Member] Exercise of NonQualified Stock Options Exercise of NonQualified Stock Options [Member] Exercise of NonQualified Stock Options [Member] Operating Loss Carryforwards [Line Items] Operating Loss Carryforwards [Line Items] Recognized carryforward tax asset Tax Credit Carryforward, Amount Operating loss carryforwards, amount subject to full valuation allowance Operating loss carryforwards, amount subject to full valuation allowance Operating loss carryforwards, amount subject to full valuation allowance Schedule of property and equipment Property, Plant and Equipment [Table Text Block] Rent expense Operating Leases, Rent Expense Sublease income Operating Leases, Rent Expense, Sublease Rentals Future minimum sublease income under noncancelable operating subleases Operating Leases, Future Minimum Payments Due, Future Minimum Sublease Rentals Common stock, no par value (dollars per share) Common Stock, No Par Value Common stock, number of shares authorized Common Stock, Shares Authorized Common stock, number of shares issued Common Stock, Shares, Issued Common stock, number of shares outstanding Common Stock, Shares, Outstanding Market Concentrations Concentration Risk Disclosure [Text Block] Shelf life Inventory, Shelf Life Inventory, Shelf Life Extended Shelf Life Inventory, Extended Shelf Life Inventory, Extended Shelf Life Inventory reserves, obsolescence and discontinuance Inventory Valuation Reserves Document and Entity Information [Abstract] Document and entity information. 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 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 Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Voluntary Filers Entity Current Reporting Status Entity Current Reporting Status Entity Public Float Entity Public Float Stock Options Employee Stock Option [Member] Plan Name [Axis] Plan Name [Axis] Plan Name [Domain] Plan Name [Domain] Long-Term Incentive Compensation Plan 2007 Long-Term Incentive Compensation Plan 2007 [Member] Long-Term Incentive Compensation Plan 2007 [Member] Directors’ Incentive Plan 2007 Directors’ Incentive Plan 2007 [Member] Directors’ Incentive Plan 2007 [Member] Principal Owner Principal Owner [Member] NonPrincipal Owner NonPrincipal Owner [Member] NonPrincipal Owner [Member] Director Director [Member] Number of equity compensation plans Share-based Compensation Arrangement by Share-based Payment Award, Number of Plans Share-based Compensation Arrangement by Share-based Payment Award, Number of Plans Number of equity compensation plans available for future grants Share-based Compensation Arrangement by Share-based Payment Award, Number of Plans Available for Future Grants Share-based Compensation Arrangement by Share-based Payment Award, Number of Plans Available for Future Grants Number of shares reserved for issuance under equity compensation plans Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Stock options, exercise price as percent of weighted-average grant date fair value Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercise Price as Percent of Weighted Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercise Price as Percent of Weighted Average Grant Date Fair Value Stock options, expiration period Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period Award vesting period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Unrecognized compensation cost related to share-based payments Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized Unrecognized compensation cost related to share-based payments, period for recognition Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Schedule of Stock by Class [Table] Schedule of Stock by Class [Table] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Common stock Common Stock [Member] Class of Stock [Axis] Class of Stock [Axis] Class of Stock [Domain] Class of Stock [Domain] Class of Stock [Line Items] Class of Stock [Line Items] Initial Public Offering [Abstract] Initial Public Offering [Abstract] Initial Public Offering [Abstract] Initial public offering, effective date Sale of Stock, Transaction Date Initial public offering, shares issued Stock Issued During Period, Shares, New Issues Initial public offering, price per share Stock Issued During Period, Price Per Share, New Issues Stock Issued During Period, Price Per Share, New Issues Initial public offering, gross proceeds Stock Issued During Period, Gross Proceeds from Initial Public Offering Stock Issued During Period, Gross Proceeds from Initial Public Offering Initial public offering, underwriting discounts Stock Issued During Period, New Shares, Underwriting Discounts Stock Issued During Period, New Shares, Underwriting Discounts Initial public offering, issuance costs Payments of Stock Issuance Costs Initial public offering, net proceeds Proceeds from Issuance Initial Public Offering Initial public offering, number of shares common stock received in exchange for preferred stock Stock Issued in Initial Public Offering, Number of Shares Common Stock Received for Preferred Stock Contemporareous With Offering Stock Issued in Initial Public Offering, Number of Shares Common Stock Received for Preferred Stock Contemporareous With Offering Preferred Stock [Abstract] Preferred Stock [Abstract] Preferred Stock [Abstract] Preferred stock, shares authorized Preferred Stock, Shares Authorized Common Stock [Abstract] Common Stock [Abstract] Common Stock [Abstract] Share-based compensation, shares Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures Exercise of options and related tax benefit, shares Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Net of Shares for Tax Withholding Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Net of Shares for Tax Withholding Vaprisol®, Omeclamox®-Pak, Ethyol®, and Methotrexate® Business Combination Disclosure [Text Block] Valuation and Qualifying Accounts Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] Property and Equipment Property, Plant and Equipment Disclosure [Text Block] Product, Vaprisol Collaborative Arrangement, Amended International Agreement Product Rights Agreement, U.S. Commercialization Rights for Kristalose from Inalco Biochemicals, Inc. and Inalco S.p.A. Product rights agreement, U.S. commercialization rights for Kristalose from Inalco Biochemicals, Inc. and Inalco S.p.A. [Member] Product rights agreement, U.S. commercialization rights for Kristalose from Inalco Biochemicals, Inc. and Inalco S.p.A. [Member] Product, Kristalose Kristalose [Member] Kristalose. Acquired Finite-Lived Intangible Assets [Line Items] Acquired Finite-Lived Intangible Assets [Line Items] Product rights agreement, quarterly payments, expiration date Product rights agreement, quarterly payments, expiration date Product rights agreement, quarterly payments, expiration date Quarterly payments made Product Rights Agreement, Quarterly Payments Made Product Rights Agreement, Quarterly Payments Made Additions to intangible assets Amortization of intangible assets Deferred Tax Assets Deferred Tax Assets, Gross [Abstract] Net operating loss and tax credits Deferred Tax Assets, Operating Loss Carryforwards and Tax Credit Carryforwards Deferred Tax Assets, Operating Loss Carryforwards and Tax Credit Carryforwards Property and equipment and intangibles Deferred Tax Assets, Property and Equipment and Intangibles Deferred Tax Assets, Property and Equipment and Intangibles Allowance for accounts receivable Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Allowance for Doubtful Accounts Reserve for expired product Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Reserves for Expired Product Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Reserves for Expired Product Inventory Deferred Tax Assets, Inventory Deferred charges Deferred Tax Assets, Deferred Charges Deferred Tax Assets, Deferred Charges Cumulative compensation costs incurred on deductible equity awards Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost Total deferred tax assets Deferred Tax Assets, Gross Deferred Tax Liabilities Deferred Tax Liabilities, Gross [Abstract] Intangible assets Deferred Tax Liabilities, Intangible Assets Net deferred tax assets, before valuation allowance Net Deferred Tax Assets, Gross Net Deferred Tax Assets, Gross Less: deferred tax asset valuation allowance Deferred Tax Assets, Valuation Allowance Net deferred tax assets Deferred Tax Assets, Net Manufacturing and Supply Agreements Manufacturing and Supply Agreements [Text Block] Manufacturing and Supply Agreements Schedule of accrued liabilities Schedule of Accrued Liabilities [Table Text Block] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Product Rights Product Rights [Member] Product Rights [Member] Licensing Rights Licensing Agreements [Member] Intangible assets, useful life Finite-Lived Intangible Assets, Useful Lives, (Textual) Finite-Lived Intangible Assets, Useful Lives, (Textual) Schedule of quarterly financial information Schedule of Quarterly Financial Information [Table Text Block] Earnings (loss) per Share Earnings Per Share [Text Block] Loss Contingencies [Table] Loss Contingencies [Table] Product, Acetadote Acetadote [Member] Acetadote. Loss Contingency Nature [Axis] Loss Contingency Nature [Axis] Loss Contingency, Nature [Domain] Loss Contingency, Nature [Domain] Patent Infringement Patent Infringement [Member] Patent Infringement [Member] Loss Contingencies [Line Items] Number of lawsuits filed as plaintiff Number of lawsuits filed as plaintiff Number of lawsuits filed as plaintiff Number of companies for which litigation settlement exists Number of companies for which litigation settlement exists Number of companies for which litigation settlement exists Anti-dilutive shares (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Income Taxes Income Tax Disclosure [Text Block] Statement of Stockholders' Equity [Abstract] Statement [Table] Statement [Table] Retained earnings Retained Earnings [Member] Noncontrolling interest Noncontrolling Interest [Member] Statement [Line Items] Statement [Line Items] Increase (Decrease) in Shareholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Equity, common shares outstanding Equity, balance Net loss at subsidiary attributable to noncontrolling interests Share-based compensation, amount Exercise of options and related tax benefit Stock Issued During Period, Value, Stock Options Exercised Repurchase of common shares Equity, common shares outstanding Equity, balance Federal tax expense at statutory rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent State income tax expense (net of federal income tax benefit) Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent Permanent differences associated with general business credits Effective Income Tax Rate Reconciliation, Tax Credit, Research, Percent Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent Other permanent differences Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Percent Other Effective Income Tax Rate Reconciliation, Other Adjustments, Percent Net income tax expense Effective Income Tax Rate Reconciliation, Percent Expiration Time Period [Axis] Expiration Time Period [Axis] Expiration Time Period [Axis] Expiration Time Period [Domain] Expiration Time Period [Domain] [Domain] for Expiration Time Period [Axis] Expiration from 2016-2018 Expiration, Term One [Member] Expiration, Term One [Member] Expiration from 2019 to 2028 Expiration, Term Two [Member] Expiration, Term Two [Member] Expiration from in2029 Expiration, Term Three [Member] Expiration, Term Three [Member] Expiration from 2030 to 2025 Expiration, Term Four [Member] Expiration, Term Four [Member] Schedule of fair value assets and liabilities assumed in acquisition Schedule of Business Acquisitions, by Acquisition [Table Text Block] Leases Leases of Lessee Disclosure [Text Block] Numerator: Numerator [Abstract] Numerator. Denominator: Denominator [Abstract] Denominator. Weighted-average shares outstanding – basic (in shares) Dilutive effect of restricted stock and stock options (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Weighted-average shares outstanding – diluted (in shares) Schedule of calculation of numerator and denominator in earnings per share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of anti-dilutive securities excluded from computation of earnings per share Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Revenue from External Customers by Products and Services [Table] Product, Omeclamox-Pak Defined Contribution Pension and Other Postretirement Plans Disclosure [Abstract] Defined Contribution Pension and Other Postretirement Plans Disclosure [Abstract] Defined contribution plan, eligibiilty, minimum employee age Defined Contribution Plan, Eligibility, Minimum Employee Age Defined Contribution Plan, Eligibility, Minimum Employee Age Defined contribution plan, eligibility, minimum employee service time for participation eligibility Defined Contribution Plan, Eligibility, Minimum Employee Service Time for Participation Eligibility Defined Contribution Plan, Eligibility, Minimum Employee Service Time for Participation Eligibility Defined contribution plan, employer discretionary contribution amount Defined Contribution Plan, Employer Discretionary Contribution Amount Deferred Compensation Arrangements [Abstract] Deferred Compensation Liability [Abstract] Deferred compensation liability Deferred Compensation Liability, Current and Noncurrent Deferred compensation assets Deferred Compensation Plan Assets