Leases - Schedule of other information related to the Company's leases (Detail) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
|
| Leases [Abstract] | ||||
| Cash paid for amounts included in the measurement of lease liabilities | $ 58 | $ 55 | $ 172 | $ 165 |
| Weighted-average remaining lease term (in years) | 3 years 2 months 12 days | 4 years 1 month 6 days | 3 years 2 months 12 days | 4 years 1 month 6 days |
| Weighted-average discount rate | 9.94% | 9.94% | 9.94% | 9.94% |