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Prepaid Expenses and Other Current Assets - Schedule of Prepaid Expenses and Other Current Assets (Detail) - USD ($)
$ in Thousands
Mar. 31, 2024
Dec. 31, 2023
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]    
Prepaid research and development services $ 499 $ 196
Prepaid insurance 279 264
Other prepaid expenses 249 182
Other current assets 556 4,906
Total prepaid expenses and other current assets $ 1,583 $ 5,548