Related party transactions - Key management's remuneration (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Related party transactions | ||||
| Salaries and other short-term employee benefits | $ 724 | $ 669 | $ 2,203 | $ 2,313 |
| Post-employment benefits - contributions to defined contribution plans and share-based payment | 593 | 610 | 1,063 | 995 |
| Directors' fees | 137 | 144 | 266 | 296 |
| Key management's remuneration | $ 1,454 | $ 1,423 | $ 3,532 | $ 3,604 |