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Additional Balance Sheet Detail - Schedule of Accrued Expenses and Other Current Liabilities (Details) - USD ($)
$ in Thousands
Sep. 30, 2022
Dec. 31, 2021
Balance Sheet Related Disclosures [Abstract]    
External research and development $ 3,829 $ 3,171
Payroll and benefits 3,490 4,990
Professional services 695 996
Other 25 74
Total accrued expenses and other current liabilities $ 8,039 $ 9,231