2. Basis of Presentation and Summary of Significant Accounting Policies (Policies)	3 Months Ended
Mar. 31, 2018
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited condensed consolidated financial statements included herein have been prepared by the Company in accordance with generally accepted accounting principles in the United States (GAAP) and under the rules and regulations of the United States Securities and Exchange Commission (SEC) for interim reporting. In management's opinion, the interim financial data presented includes all adjustments (consisting solely of normal recurring items) necessary for fair presentation. All intercompany accounts and transactions have been eliminated. Certain information required by GAAP has been condensed or omitted in accordance with rules and regulations of the SEC. Operating results for the three months ended March 31, 2018 are not necessarily indicative of the results that may be expected for any future period or for the year ending December 31, 2018. These unaudited condensed consolidated financial statements should be read in conjunction with the Company's audited consolidated financial statements and the notes thereto for the year ended December 31, 2017, included in Pernix's 2017 Annual Report on Form 10-K filed with the SEC. The preparation of the unaudited condensed consolidated financial statements requires management to make estimates and assumptions relating to reporting of the assets and liabilities and the disclosure of contingent assets and liabilities to prepare these unaudited condensed consolidated financial statements and the reported amounts of revenues and expenses during the reporting period in conformity with GAAP. Significant estimates of the Company include: revenue recognition, sales allowances such as returns on product sales, government program rebates, customer coupon redemptions, wholesaler/pharmacy discounts, product service fees, rebates and chargebacks, sales commissions, amortization, stock-based compensation, the determination of fair values of assets and liabilities in connection with business combinations, and deferred income taxes. Actual results could differ from these estimates. Certain prior period amounts have been reclassified to conform to the current period presentation including reclassifying capitalized debt issuance costs of approximately $1.5 million from "Prepaid expenses and other current assets" to the Company's long-term debt instruments within "Total liabilities" except for those related to revolving credit facilities. This reclassification had no effect on previously reported results of operations, financial position or cash flows.
Interim Financial Statements	The accompanying unaudited condensed consolidated financial statements included herein have been prepared by the Company in accordance with generally accepted accounting principles in the United States (GAAP) and under the rules and regulations of the United States Securities and Exchange Commission (SEC) for interim reporting. In management's opinion, the interim financial data presented includes all adjustments (consisting solely of normal recurring items) necessary for fair presentation. All intercompany accounts and transactions have been eliminated. Certain information required by GAAP has been condensed or omitted in accordance with rules and regulations of the SEC. Operating results for the three months ended March 31, 2018 are not necessarily indicative of the results that may be expected for any future period or for the year ending December 31, 2018.
Management's Estimates and Assumptions	The preparation of the unaudited condensed consolidated financial statements requires management to make estimates and assumptions relating to reporting of the assets and liabilities and the disclosure of contingent assets and liabilities to prepare these unaudited condensed consolidated financial statements and the reported amounts of revenues and expenses during the reporting period in conformity with GAAP. Significant estimates of the Company include: revenue recognition, sales allowances such as returns on product sales, government program rebates, customer coupon redemptions, wholesaler/pharmacy discounts, product service fees, rebates and chargebacks, sales commissions, amortization, stock-based compensation, the determination of fair values of assets and liabilities in connection with business combinations, and deferred income taxes. Actual results could differ from these estimates.
Reclassifications	Certain prior period amounts have been reclassified to conform to the current period presentation including reclassifying capitalized debt issuance costs of approximately $1.5 million from "Prepaid expenses and other current assets" to the Company's long-term debt instruments within "Total liabilities" except for those related to revolving credit facilities. This reclassification had no effect on previously reported results of operations, financial position or cash flows.
Principles of Consolidation	The unaudited condensed consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All significant intercompany balances and transactions have been eliminated in consolidation.
Recently Adopted Accounting Pronouncements	Recently Adopted Accounting Pronouncements In May 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2014-09, Revenue from Contracts with Customers (Topic 606) which supersedes nearly all existing revenue recognition guidance. Effective January 1, 2018, the Company adopted ASU No. 2014-09, Revenue from Contracts with Customers (ASC 606) and all the related amendments (new revenue standard) to all contracts using the modified retrospective method. No material differences were identified as compared to the Company's historical revenue recognition accounting and accordingly, the Company did not recognize a cumulative effect of applying the new revenue standard as an adjustment to the opening balance of retained earnings. The comparative information has not been restated and continues to be reported under the accounting standards in effect for those periods. The Company does not expect the adoption of the new revenue standard to have a material impact to the Company's net income on an ongoing basis. In May 2017, the FASB issued ASU 2017-09, Compensation-Stock Compensation (Topic 718): Scope of Modification Accounting, (ASU 2017-09). ASU 2017-09 provides clarity and reduces both (1) diversity in practice and (2) cost and complexity when applying the guidance in Topic 718, to a change to the terms or conditions of a share-based payment award. ASU 2017-09 is effective for the interim and annual periods beginning after December 15, 2017. The Company adopted the provisions of ASU 2017-09 as of January 1, 2018. There was no material impact on the Company's condensed consolidated financial statements resulting from the adoption of this guidance In January 2017, the FASB issued ASU 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business, which changes the definition of a business to assist entities with evaluating when a set of transferred assets and activities is deemed to be a business. Determining whether a transferred set constitutes a business is important because the accounting for a business combination differs from that of an asset acquisition. The definition of a business also affects the accounting for dispositions. Under the new standard, when substantially all of the fair value of assets acquired are concentrated in a single asset, or a group of similar assets, the assets acquired would not represent a business and business combination accounting would not be required. The new standard may result in more transactions being accounted for as asset acquisitions rather than business combinations. The standard is effective for interim and annual periods beginning after December 15, 2017 and shall be applied prospectively. The Company adopted ASU 2017-01 as of January 1, 2018, and there was no material impact on the Company's condensed consolidated financial statements resulting from the adoption of this guidance. In August 2016, the FASB issued ASU 2016-15 Statement of Cash Flows - Classification of Certain Cash Receipts and Cash Payments, which provides updated guidance on eight classification issues related to the statement of cash flows: debt prepayments and extinguishment costs, settlement of zero-coupon bonds, contingent consideration payments made after a business combination, proceeds from the settlement of insurance claims, proceeds from the settlement of corporate-owned life insurance policies, distributions received from equity method investees, beneficial interests in securitization transactions and separately identifiable cash flows and application of the predominance principle. ASU 2016-15 is effective for interim and annual periods beginning after December 15, 2017. The Company adopted the provisions of ASU 2016-15 as of January 1, 2018. There was no material impact on the Company's results of operations resulting from the adoption of this guidance. In January 2016, the FASB issued ASU 2016-01, Financial Instruments-Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities. The accounting standard primarily affects the accounting for equity investments, financial liabilities under the fair value option, and the presentation and disclosure requirements for financial instruments. In addition, it includes a clarification related to the valuation allowance assessment when recognizing deferred tax assets resulting from unrealized losses on available-for-sale debt securities. The accounting guidance is effective for annual reporting periods (including interim periods within those periods) beginning after December 15, 2017. The Company adopted ASU 2016-01 as of January 1, 2018, and there was no material impact on the Company's condensed consolidated financial statements resulting from the adoption of this guidance. Recently Issued Accounting Standards, Not Adopted as of March 31, 2018 In February 2018, the FASB issued Accounting Standards Update (ASU) 2018-02, Income Statement - Reporting Comprehensive Income (Topic 220), Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income, (ASU 2018-02). The amendments in ASU 2018-02 allow a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Cuts and Jobs Act (H.R. 1) (the Act). Consequently, the amendments eliminate the stranded tax effects resulting from the Act and will improve the usefulness of information reported to financial statement users. However, because the amendments only relate to the reclassification of the income tax effects of the Act, the underlying guidance that requires that the effect of a change in tax laws or rates be included in income from continuing operations is not affected. The amendments in ASU 2018-02 also require certain disclosures about stranded tax effects. ASU 2018-02 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2018. The Company is currently assessing the potential impact of adopting ASU 2018-02 on its financial statements and related disclosures. In March 2018, the FASB issued ASU No. 2018-05, Income Taxes (Topic 740): Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 118 which allowed SEC registrants to record provisional amounts in earnings for the year ended December 31, 2017 due to the complexities involved in accounting for the enactment of the TCJA. The Company continues to analyze the 2017 Tax Act, see Note 10, Income taxes for more information. Management does not believe that any other recently issued, but not yet effective, accounting standards if currently adopted would have a material effect on the Company's consolidated financial statements.
Revenue Recognition	The Company's new revenue recognition policy is as follows: Revenue is recognized upon transfer of control of promised products or services to customers in an amount that reflects the consideration the Company expects to receive in exchange for those products or services. The Company generally enters into contracts to sell approved branded and generic pharmaceutical drugs. Product Sales Product sales revenue is recognized at the estimated consideration to be received when control has transferred to the customer, which is typically on delivery to the customer or, in the case of products that are subject to consignment agreements, when the customer removes product from the Company's consigned inventory location for shipment directly to a patient. Payment terms vary by customer and the products or services offered and is generally required in a term ranging from 30 to 90 days from date of shipment or satisfaction of the performance obligation. Significant Judgements Product sales contracts provide the customer with the right to return the product and also provide for a variety of discounts and allowances including, specialty distributor fees, wholesaler fees, prompt payment discounts, government rebates, government chargebacks, coupon programs and rebates under managed care plans which are accounted for as variable consideration. Returns are estimated through comparison of historical return data to their related sales on a production lot basis. Historical rates of return are determined for each product and are adjusted for known or expected changes in the marketplace specific to each product, when appropriate. Judgement is required to estimate the appropriate adjustments for variable consideration which is based on sales or invoice data, contractual terms, historical utilization rates, new information regarding changes in these programs' regulations and guidelines that would impact the amount of the actual rebates, the Company's expectations regarding future utilization rates for these programs and channel inventory data. Contract Balances The timing of customer invoicing generally does not differ from the timing of revenue recognition. The Company records provisions for returns, specialty distributor fees, wholesaler fees, government rebates, coupon programs and rebates under managed care plans are included within current liabilities in the Company's consolidated balance sheets. Provision for prompt payment discounts are generally shown as a reduction in accounts receivable.
Significant Customers	Significant Customers The Company's customers consist of drug wholesalers, specialty pharmacies, retail drug stores, mass merchandisers and grocery store pharmacies in the United States. The Company primarily sells its products directly to large national drug wholesalers, which in turn resell the products to smaller or regional wholesalers, retail pharmacies, chain drug stores, and other third parties.
Earnings per Share	Basic net income (loss) per common share is the amount of net income (loss) for the period divided by the weighted average shares of common stock outstanding during the reporting period. Diluted income (loss) per common share is the amount of income (loss) for the period plus interest expense on convertible debt divided by the sum of weighted average shares of common stock outstanding during the reporting period and weighted average shares that would have been outstanding assuming the issuance of common shares for all dilutive potential common shares.

2. Basis of Presentation and Summary of Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2018

Basis of Presentation

The accompanying unaudited condensed consolidated financial statements included herein have been prepared by the Company in accordance with generally accepted accounting principles in the United States (GAAP) and under the rules and regulations of the United States Securities and Exchange Commission (SEC) for interim reporting. In management's opinion, the interim financial data presented includes all adjustments (consisting solely of normal recurring items) necessary for fair presentation. All intercompany accounts and transactions have been eliminated. Certain information required by GAAP has been condensed or omitted in accordance with rules and regulations of the SEC. Operating results for the three months ended March 31, 2018 are not necessarily indicative of the results that may be expected for any future period or for the year ending December 31, 2018.

These unaudited condensed consolidated financial statements should be read in conjunction with the Company's audited consolidated financial statements and the notes thereto for the year ended December 31, 2017, included in Pernix's 2017 Annual Report on Form 10-K filed with the SEC.

The preparation of the unaudited condensed consolidated financial statements requires management to make estimates and assumptions relating to reporting of the assets and liabilities and the disclosure of contingent assets and liabilities to prepare these unaudited condensed consolidated financial statements and the reported amounts of revenues and expenses during the reporting period in conformity with GAAP. Significant estimates of the Company include: revenue recognition, sales allowances such as returns on product sales, government program rebates, customer coupon redemptions, wholesaler/pharmacy discounts, product service fees, rebates and chargebacks, sales commissions, amortization, stock-based compensation, the determination of fair values of assets and liabilities in connection with business combinations, and deferred income taxes. Actual results could differ from these estimates.

Certain prior period amounts have been reclassified to conform to the current period presentation including reclassifying capitalized debt issuance costs of approximately $1.5 million from "Prepaid expenses and other current assets" to the Company's long-term debt instruments within "Total liabilities" except for those related to revolving credit facilities. This reclassification had no effect on previously reported results of operations, financial position or cash flows.

Interim Financial Statements

Management's Estimates and Assumptions

Reclassifications

Principles of Consolidation

The unaudited condensed consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All significant intercompany balances and transactions have been eliminated in consolidation.

Recently Adopted Accounting Pronouncements

Recently Adopted Accounting Pronouncements

In May 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2014-09, Revenue from Contracts with Customers (Topic 606) which supersedes nearly all existing revenue recognition guidance. Effective January 1, 2018, the Company adopted ASU No. 2014-09, Revenue from Contracts with Customers (ASC 606) and all the related amendments (new revenue standard) to all contracts using the modified retrospective method. No material differences were identified as compared to the Company's historical revenue recognition accounting and accordingly, the Company did not recognize a cumulative effect of applying the new revenue standard as an adjustment to the opening balance of retained earnings. The comparative information has not been restated and continues to be reported under the accounting standards in effect for those periods. The Company does not expect the adoption of the new revenue standard to have a material impact to the Company's net income on an ongoing basis.

In May 2017, the FASB issued ASU 2017-09, Compensation-Stock Compensation (Topic 718): Scope of Modification Accounting, (ASU 2017-09). ASU 2017-09 provides clarity and reduces both (1) diversity in practice and (2) cost and complexity when applying the guidance in Topic 718, to a change to the terms or conditions of a share-based payment award. ASU 2017-09 is effective for the interim and annual periods beginning after December 15, 2017. The Company adopted the provisions of ASU 2017-09 as of January 1, 2018. There was no material impact on the Company's condensed consolidated financial statements resulting from the adoption of this guidance

In January 2017, the FASB issued ASU 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business, which changes the definition of a business to assist entities with evaluating when a set of transferred assets and activities is deemed to be a business. Determining whether a transferred set constitutes a business is important because the accounting for a business combination differs from that of an asset acquisition. The definition of a business also affects the accounting for dispositions. Under the new standard, when substantially all of the fair value of assets acquired are concentrated in a single asset, or a group of similar assets, the assets acquired would not represent a business and business combination accounting would not be required. The new standard may result in more transactions being accounted for as asset acquisitions rather than business combinations. The standard is effective for interim and annual periods beginning after December 15, 2017 and shall be applied prospectively. The Company adopted ASU 2017-01 as of January 1, 2018, and there was no material impact on the Company's condensed consolidated financial statements resulting from the adoption of this guidance.

In August 2016, the FASB issued ASU 2016-15 Statement of Cash Flows - Classification of Certain Cash Receipts and Cash Payments, which provides updated guidance on eight classification issues related to the statement of cash flows: debt prepayments and extinguishment costs, settlement of zero-coupon bonds, contingent consideration payments made after a business combination, proceeds from the settlement of insurance claims, proceeds from the settlement of corporate-owned life insurance policies, distributions received from equity method investees, beneficial interests in securitization transactions and separately identifiable cash flows and application of the predominance principle. ASU 2016-15 is effective for interim and annual periods beginning after December 15, 2017. The Company adopted the provisions of ASU 2016-15 as of January 1, 2018. There was no material impact on the Company's results of operations resulting from the adoption of this guidance.

In January 2016, the FASB issued ASU 2016-01, Financial Instruments-Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities. The accounting standard primarily affects the accounting for equity investments, financial liabilities under the fair value option, and the presentation and disclosure requirements for financial instruments. In addition, it includes a clarification related to the valuation allowance assessment when recognizing deferred tax assets resulting from unrealized losses on available-for-sale debt securities. The accounting guidance is effective for annual reporting periods (including interim periods within those periods) beginning after December 15, 2017. The Company adopted ASU 2016-01 as of January 1, 2018, and there was no material impact on the Company's condensed consolidated financial statements resulting from the adoption of this guidance.

Recently Issued Accounting Standards, Not Adopted as of March 31, 2018

In February 2018, the FASB issued Accounting Standards Update (ASU) 2018-02, Income Statement - Reporting Comprehensive Income (Topic 220), Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income, (ASU 2018-02). The amendments in ASU 2018-02 allow a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Cuts and Jobs Act (H.R. 1) (the Act). Consequently, the amendments eliminate the stranded tax effects resulting from the Act and will improve the usefulness of information reported to financial statement users. However, because the amendments only relate to the reclassification of the income tax effects of the Act, the underlying guidance that requires that the effect of a change in tax laws or rates be included in income from continuing operations is not affected. The amendments in ASU 2018-02 also require certain disclosures about stranded tax effects. ASU 2018-02 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2018. The Company is currently assessing the potential impact of adopting ASU 2018-02 on its financial statements and related disclosures.

In March 2018, the FASB issued ASU No. 2018-05, Income Taxes (Topic 740): Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 118 which allowed SEC registrants to record provisional amounts in earnings for the year ended December 31, 2017 due to the complexities involved in accounting for the enactment of the TCJA. The Company continues to analyze the 2017 Tax Act, see Note 10, Income taxes for more information.

Management does not believe that any other recently issued, but not yet effective, accounting standards if currently adopted would have a material effect on the Company's consolidated financial statements.

Revenue Recognition

The Company's new revenue recognition policy is as follows:

Revenue is recognized upon transfer of control of promised products or services to customers in an amount that reflects the consideration the Company expects to receive in exchange for those products or services. The Company generally enters into contracts to sell approved branded and generic pharmaceutical drugs.

Product Sales

Product sales revenue is recognized at the estimated consideration to be received when control has transferred to the customer, which is typically on delivery to the customer or, in the case of products that are subject to consignment agreements, when the customer removes product from the Company's consigned inventory location for shipment directly to a patient. Payment terms vary by customer and the products or services offered and is generally required in a term ranging from 30 to 90 days from date of shipment or satisfaction of the performance obligation.

Significant Judgements

Product sales contracts provide the customer with the right to return the product and also provide for a variety of discounts and allowances including, specialty distributor fees, wholesaler fees, prompt payment discounts, government rebates, government chargebacks, coupon programs and rebates under managed care plans which are accounted for as variable consideration. Returns are estimated through comparison of historical return data to their related sales on a production lot basis. Historical rates of return are determined for each product and are adjusted for known or expected changes in the marketplace specific to each product, when appropriate.

Judgement is required to estimate the appropriate adjustments for variable consideration which is based on sales or invoice data, contractual terms, historical utilization rates, new information regarding changes in these programs' regulations and guidelines that would impact the amount of the actual rebates, the Company's expectations regarding future utilization rates for these programs and channel inventory data.

Contract Balances

The timing of customer invoicing generally does not differ from the timing of revenue recognition. The Company records provisions for returns, specialty distributor fees, wholesaler fees, government rebates, coupon programs and rebates under managed care plans are included within current liabilities in the Company's consolidated balance sheets. Provision for prompt payment discounts are generally shown as a reduction in accounts receivable.

Significant Customers

Significant Customers

The Company's customers consist of drug wholesalers, specialty pharmacies, retail drug stores, mass merchandisers and grocery store pharmacies in the United States. The Company primarily sells its products directly to large national drug wholesalers, which in turn resell the products to smaller or regional wholesalers, retail pharmacies, chain drug stores, and other third parties.

Earnings per Share

Basic net income (loss) per common share is the amount of net income (loss) for the period divided by the weighted average shares of common stock outstanding during the reporting period. Diluted income (loss) per common share is the amount of income (loss) for the period plus interest expense on convertible debt divided by the sum of weighted average shares of common stock outstanding during the reporting period and weighted average shares that would have been outstanding assuming the issuance of common shares for all dilutive potential common shares.