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Accrued Expenses and Other Current Liabilities - Schedule of Accrued Expenses and Other Current Liabilities (Detail) - USD ($) $ in Thousands | Jun. 30, 2026 | Dec. 31, 2025
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Payables and Accruals [Abstract] |  |
Accrued compensation and related expenses | $ 1,492 | $ 2,486
Accrued professional services and other | 861 | 591
Accrued external research and development | 748 | 462
Operating lease liabilities | $ 735 | $ 693
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] | Accrued Expenses And Other Liabilities Current | Accrued Expenses And Other Liabilities Current
Total accrued expenses and other current liabilities | $ 3,836 | $ 4,232

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