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Accrued Expenses and Other Current Liabilities - Summary of Accrued Expenses and Other Current Liabilities (Detail) - USD ($)
$ in Thousands
Sep. 30, 2022
Dec. 31, 2021
Payables and Accruals [Abstract]    
External research and development services $ 1,850 $ 1,575
Payroll and payroll-related costs 1,063 1,182
Professional fees 533 388
Other 78 60
Total Accrued Expenses and Other Liabilities $ 3,524 $ 3,205