Defined contribution plan (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Defined contribution plan | ||||
| Defined contributions | $ 135 | $ 232 | $ 375 | $ 629 |
| First 3% of participating employee contributions | ||||
| Defined contribution plan | ||||
| Employer contribution matching percentage | 100.00% | |||
| Employee contribution | 3.00% | |||
| Next 2% of participating employee contributions | ||||
| Defined contribution plan | ||||
| Employer contribution matching percentage | 50.00% | |||
| Employee contribution | 2.00% | |||