Stock-Based Compensation - Components of Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Stock-Based Compensation [Abstract] | ||||
| Total stock-based compensation expense | $ 500 | $ 738 | $ 966 | $ 1,342 |
| Research and Development [Member] | ||||
| Stock-Based Compensation [Abstract] | ||||
| Total stock-based compensation expense | 254 | 386 | 530 | 709 |
| General and Administrative [Member] | ||||
| Stock-Based Compensation [Abstract] | ||||
| Total stock-based compensation expense | $ 246 | $ 352 | $ 436 | $ 633 |