Retirement benefits obligations - Comprehensive loss (Details) - CHF (SFr) |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Retirement benefits obligations | ||||
| Current service cost | SFr (17,268) | SFr (7,521) | SFr (34,536) | SFr (15,043) |
| Interest cost | (16,659) | (5,399) | (33,319) | (10,799) |
| Interest income | 15,452 | 4,861 | 30,904 | 9,721 |
| Company pension amount | SFr (18,475) | SFr (8,059) | SFr (36,951) | SFr (16,121) |