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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, 2024 | Dec. 31, 2023
--- | --- | ---
Accrued Liabilities |  |
Compensation | $ 1,904 | $ 4,682
Subcontractor | 1,756 | 1,756
Professional fees | 2,736 | 2,394
Customer deposit | 621 | 621
Supplier | 276 | 303
Royalties owed to third parties | 1,252 | 900
Amounts owed to former licensees | 0 | 45
Acquisition related liabilities | 2,118 | 0
Other | 1,767 | 1,766
Accrued liabilities | $ 12,430 | $ 12,467

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