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Accrued Liabilities (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Payables and Accruals [Abstract] |  |
Legal and other professional services | $ 3,204 | $ 3,128
Compensation expense | 1,897 | 3,584
Research and development projects | 1,532 | 981
Other accrued liabilities | 152 | 333
Accrued liabilities | $ 6,785 | $ 8,026

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