Stock-Based Compensation - Summary of stock-based compensation expense (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Stock-based Compensation | ||
| Total stock-based compensation expense | $ 1,207 | $ 3,456 |
| Total unrecognized stock compensation cost | $ 800 | |
| Unrecognized compensation cost recognized period (in years) | 1 year 6 months | |
| Research and development | ||
| Stock-based Compensation | ||
| Total stock-based compensation expense | $ 1,167 | 3,112 |
| General and administrative | ||
| Stock-based Compensation | ||
| Total stock-based compensation expense | $ 40 | $ 344 |