Summary of Significant Accounting Policies - Narrative (Details)			3 Months Ended								12 Months Ended
	Oct. 23, 2020 USD ($)	May 28, 2020	Dec. 31, 2020 USD ($)	Sep. 30, 2020 USD ($)	Jun. 30, 2020 USD ($)	Mar. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Sep. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2020 USD ($) product	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Summary of Significant Accounting Policies Details [Line Items]
Stockholders' equity note, stock split, conversion ratio		0.1
Restricted cash			$ 206,000				$ 206,000				$ 206,000	$ 206,000
Impairment loss on IPR&D											101,500,000
Impairment of long-lived assets											101,533,000	0
Impairments											$ 21,700,000
Product acquisition costs, amortization period											10 years
Goodwill			501,000				491,000				$ 501,000	491,000	$ 470,000
Allowance for doubtful accounts			2,399,000				2,208,000				2,399,000	2,208,000
Allowance for doubtful accounts related to one customer			1,700,000				1,700,000				$ 1,700,000	1,700,000
Percentage of net sales for royalty											40.00%
Royalties			302,000				377,000				$ 302,000	377,000
Royalty expense											700,000	1,400,000
Company product sales, net			9,937,000	$ 14,339,000	$ 13,586,000	$ 7,447,000	15,967,000	$ 18,466,000	$ 18,341,000	$ 13,122,000	45,309,000	65,896,000
Assets			87,788,000				206,905,000				87,788,000	206,905,000
Foreign currency loss											(5,000,000.0)
Unrecognized tax benefits			2,331,000				0				2,331,000	0	0
Unrecognized tax benefits that would impact effective tax rate			2,300,000								2,300,000
Cost of revenues											49,031,000	42,373,000
Right-of-use asset			2,001,000				2,453,000				2,001,000	2,453,000
Operating lease liability			2,183,000				2,633,000				2,183,000	$ 2,633,000
Trademarks and Technology
Summary of Significant Accounting Policies Details [Line Items]
Impairment of long-lived assets											$ 8,090,000
Intangible assets useful life											15 years
Impairments											$ 8,100,000
In-process research and development (IPR&D)
Summary of Significant Accounting Policies Details [Line Items]
Impairment of long-lived assets											74,000
Impairments											100,000
Property, Plant and Equipment
Summary of Significant Accounting Policies Details [Line Items]
Impairment loss on IPR&D											79,800,000
Product Acquisition Costs
Summary of Significant Accounting Policies Details [Line Items]
Impairment loss on IPR&D											13,500,000
Impairments											$ 13,500,000
The J. Molner Company OU | Affiliated Entity
Summary of Significant Accounting Policies Details [Line Items]
Business combination, consideration transferred	$ 125,000,000
Business acquisition, transaction costs	$ 5,675,000
Accounting Standards Update 2016-02
Summary of Significant Accounting Policies Details [Line Items]
Right-of-use asset													1,900,000
Operating lease liability													$ 2,000,000.0
Net sales revenue
Summary of Significant Accounting Policies Details [Line Items]
Concentration risk											47.00%	41.00%
Accounts receivable
Summary of Significant Accounting Policies Details [Line Items]
Concentration risk											75.00%	31.00%
Customer one | Sales
Summary of Significant Accounting Policies Details [Line Items]
Company product sales, net											$ 11,500,000	$ 17,600,000
Customer one | Accounts receivable
Summary of Significant Accounting Policies Details [Line Items]
Concentration risk											48.00%	25.00%
Customer two | Sales
Summary of Significant Accounting Policies Details [Line Items]
Company product sales, net											$ 5,200,000
Customer two | Accounts receivable
Summary of Significant Accounting Policies Details [Line Items]
Concentration risk											19.00%
Customer three | Sales
Summary of Significant Accounting Policies Details [Line Items]
Company product sales, net											$ 4,500,000	$ 9,600,000
Customer three | Accounts receivable
Summary of Significant Accounting Policies Details [Line Items]
Concentration risk											8.00%	22.00%
Maximum
Summary of Significant Accounting Policies Details [Line Items]
Intangible assets useful life											15 years
Minimum
Summary of Significant Accounting Policies Details [Line Items]
Intangible assets useful life											10 years
Net Of SRA Balance
Summary of Significant Accounting Policies Details [Line Items]
Accounts receivable net			28,900,000				30,500,000				$ 28,900,000	$ 30,500,000
US
Summary of Significant Accounting Policies Details [Line Items]
Products which the company pays royalties | product											0
Wholesalers, Distributors, National Retail Chains | Maximum
Summary of Significant Accounting Policies Details [Line Items]
Terms of customer credit											90 days
Wholesalers, Distributors, National Retail Chains | Minimum
Summary of Significant Accounting Policies Details [Line Items]
Terms of customer credit											60 days
Contract Services Customers | Minimum
Summary of Significant Accounting Policies Details [Line Items]
Terms of customer credit											30 years
Diflorasone Diacetate Ointment USP 0.05% | Net sales revenue | Product Concentration Risk
Summary of Significant Accounting Policies Details [Line Items]
Concentration risk											15.00%
Shipping and Handling
Summary of Significant Accounting Policies Details [Line Items]
Cost of revenues											$ 1,600,000	1,800,000
Domestic
Summary of Significant Accounting Policies Details [Line Items]
Net revenues											34,500,000	48,400,000
Assets			139,900,000				154,300,000				139,900,000	154,300,000
Foreign
Summary of Significant Accounting Policies Details [Line Items]
Net revenues											10,800,000	17,500,000
Assets			$ 41,200,000				$ 52,600,000				$ 41,200,000	$ 52,600,000
2019 Notes
Summary of Significant Accounting Policies Details [Line Items]
Restricted cash										$ 2,700,000