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
Jun. 30, 2021
Dec. 31, 2020
Accrued Liabilities    
Compensation $ 3,684 $ 8,810
Professional fees 977 977
Amounts owed to former licensees 446 421
Royalties owed to third parties 52 693
Return reserve 105 687
Acquisition related liabilities 1,500 1,500
Subcontractor 0 733
Supplier 681 604
Accrued interest 295 464
Other 2,367 3,641
Total accrued liabilities $ 10,107 $ 18,530