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Accrued Expenses (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Accrued Expenses |  |
Accrued contracted costs | $ 2,863 | $ 2,822
Accrued compensation | 2,671 | 3,373
Accrued professional fees | 1,891 | 588
Accrued other | 331 | 407
Accrued milestones |  | 500
Total | $ 7,756 | $ 7,690

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