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Accrued Expenses and Other Current Liabilities - Schedule of accrued expenses and other current liabilities (Details) - USD ($)
$ in Thousands
Jun. 30, 2023
Dec. 31, 2022
Payables and Accruals [Abstract]    
Research and development contract costs $ 6,962 $ 11,256
Compensation and related benefits 2,347 3,967
Operating lease liabilities 747 701
Deferred revenue 743 0
Other 184 471
Litigation settlement 0 1,400
Total accrued expenses and other current liabilities $ 10,983 $ 17,795