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Accrued Expenses and Other Current Liabilities - Schedule of Accrued Expenses and Other Current Liabilities (Detail) - USD ($)
$ in Thousands
Mar. 31, 2024
Dec. 31, 2023
Payables and Accruals [Abstract]    
Accrued payroll and related expenses $ 1,302 $ 3,339
Accrued external research and development expenses 2,995 2,274
Accrued professional fees 875 708
Accrued other 208 236
Total Accrued expenses and other current liabilities $ 5,380 $ 6,557