Stock-Based Compensation - Summary of stock-based compensation expense (Details) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
|
| Stock-based Compensation | ||
| Total stock-based compensation expense | $ 288 | $ 385 |
| Total unrecognized stock compensation cost | $ 800 | |
| Unrecognized compensation cost recognized period (in years) | 1 year 9 months 18 days | |
| Research and development | ||
| Stock-based Compensation | ||
| Total stock-based compensation expense | $ 288 | 365 |
| General and administrative | ||
| Stock-based Compensation | ||
| Total stock-based compensation expense | $ 20 | |