Share-Based Compensation - Recognized share-based compensation expense (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Share-based compensation | ||||
| Share-based compensation expense | $ 1,338 | $ 1,308 | $ 2,620 | $ 2,659 |
| Location, Statement of Income, Balance [Axis]: us-gaap:ResearchAndDevelopmentExpense | ||||
| Share-based compensation | ||||
| Share-based compensation expense | 375 | 367 | 776 | 797 |
| Location, Statement of Income, Balance [Axis]: us-gaap:SellingGeneralAndAdministrativeExpense | ||||
| Share-based compensation | ||||
| Share-based compensation expense | $ 963 | $ 941 | $ 1,844 | $ 1,862 |