Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation and Summary of Significant Accounting Policies - Accrued Liabilities and Other Long-Term Liabilities (Details)

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Basis of Presentation and Summary of Significant Accounting Policies - Accrued Liabilities and Other Long-Term Liabilities (Details) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Accrued Liabilities    
Compensation $ 3,347 $ 8,810
Professional fees 958 977
Amounts owed to former licensees 468 421
Royalties owed to third parties 102 693
Return reserve 682 687
Acquisition related liabilities 1,500 1,500
Subcontractor 1,034 733
Supplier 788 604
Accrued interest 1,086 464
Other 2,145 3,641
Total accrued liabilities $ 12,110 $ 18,530