Balance Sheet Components - Schedule of Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Organization, Consolidation and Presentation of Financial Statements [Abstract] | ||
| Prepaid general and administrative | $ 1,170 | $ 1,316 |
| Prepaid research and development | 441 | 4,146 |
| Tax-related receivable | 848 | 2,622 |
| Prepaid contract research organization expenses | 431 | 282 |
| Other current assets | 148 | 959 |
| Total prepaid and other current assets | $ 3,038 | $ 9,325 |