Prepaid Expenses, Other Current Assets and Other Noncurrent Assets - Summary of Prepaid Expenses and Other Current Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Prepaid Expense and Other Assets, Current [Abstract]
Prepaid external research and development	$ 2,076	$ 1,834
Payroll tax credit	555	755
Prepaid expenses	885	427
Other	396	83
Total prepaid expenses and other current assets	$ 3,912	$ 3,099