Stock-based Compensation - Summary of stock-based compensation expense (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
|
| Stock-based Compensation | ||||
| Total stock-based compensation expense | $ 148 | $ 273 | $ 617 | $ 1,022 |
| Total unrecognized stock compensation cost | 500 | $ 500 | ||
| Unrecognized compensation cost recognized period (in years) | 1 year 6 months | |||
| Location, Statement of Income, Balance [Axis]: us-gaap:GeneralAndAdministrativeExpense | ||||
| Stock-based Compensation | ||||
| Total stock-based compensation expense | 39 | |||
| Location, Statement of Income, Balance [Axis]: us-gaap:ResearchAndDevelopmentExpense | ||||
| Stock-based Compensation | ||||
| Total stock-based compensation expense | $ 148 | $ 273 | $ 617 | $ 983 |