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Subsidiary Bankruptcy and Deconsolidation (Details) - USD ($) |  |  |  | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Oct. 31, 2020 | Jul. 24, 2020 | Apr. 26, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Oct. 02, 2019 | Jul. 02, 2019 | Feb. 08, 2019 | Feb. 05, 2019
Business Acquisition, Contingent Consideration [Line Items] |  |  |  |  |  |  |  |  |  |
Gain (loss) on deconsolidation of subsidiary |  |  |  | $ 0 | $ 2,678,000 | $ 0 |  |  |  |
Bankruptcy claims, amount paid to settle claims |  | $ 800,000 |  |  |  |  |  |  |  |
Gain from release of certain liabilities | $ 3,364,000 |  |  | 3,364,000 | 0 | $ 0 |  |  |  |
Specialty Pharma |  |  |  |  |  |  |  |  |  |
Business Acquisition, Contingent Consideration [Line Items] |  |  |  |  |  |  |  |  |  |
Equity method investments, fair value |  |  |  |  |  |  |  |  |  | $ 0
Gain (loss) on deconsolidation of subsidiary |  |  |  |  | 2,678,000 |  |  |  |  |
Speciality Pharama |  |  |  |  |  |  |  |  |  |
Business Acquisition, Contingent Consideration [Line Items] |  |  |  |  |  |  |  |  |  |
Aggregate cash proceeds of intangible assets and remaining inventory |  |  | $ 250,000 |  |  |  |  |  |  |
Serenity Pharmaceuticals, LLC |  |  |  |  |  |  |  |  |  |
Business Acquisition, Contingent Consideration [Line Items] |  |  |  |  |  |  |  |  |  |
Loss Contingency, Damages Sought, Value |  | 3,096,000 |  |  |  |  |  |  |  |
Serenity Pharmaceuticals, LLC | Minimum |  |  |  |  |  |  |  |  |  |
Business Acquisition, Contingent Consideration [Line Items] |  |  |  |  |  |  |  |  |  |
Loss Contingency, Damages Sought, Value |  | $ 50,000,000 |  |  |  |  |  |  |  |
Internal Revenue Service (IRS) | Speciality Pharama |  |  |  |  |  |  |  |  |  |
Business Acquisition, Contingent Consideration [Line Items] |  |  |  |  |  |  |  |  |  |
Bankruptcy claims, amount of filed claims likely to be denied |  |  |  | 1,937,000 |  |  | $ 9,302,000 | $ 50,695,000 |  |
Bankruptcy claims, amount paid to settle claims |  |  |  | 1,937,000 |  |  |  |  |  |
DIP Credit Agreement | Debtor in Possession Credit and Security Facility |  |  |  |  |  |  |  |  |  |
Business Acquisition, Contingent Consideration [Line Items] |  |  |  |  |  |  |  |  |  |
Gain (loss) on deconsolidation of subsidiary |  |  |  |  | 407,000 |  |  |  |  |
Payments for debtor in possession financing |  |  |  | $ 0 | $ 407,000 |  |  |  |  |
DIP Credit Agreement | Debtor in Possession Credit and Security Facility | Speciality Pharama |  |  |  |  |  |  |  |  |  |
Business Acquisition, Contingent Consideration [Line Items] |  |  |  |  |  |  |  |  |  |
DIP financing, amount arranged |  |  |  |  |  |  |  |  | $ 2,700,000 |

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