Restructuring expense (Details) SFr in Thousands |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
|
Jun. 10, 2025
position
|
Jun. 30, 2026
CHF (SFr)
|
Jun. 30, 2025
CHF (SFr)
|
Jun. 30, 2026
CHF (SFr)
|
Jun. 30, 2025
CHF (SFr)
|
|
| Restructuring Expense [Abstract] | |||||
| Number of positions eliminated | position | 34 | ||||
| Expense of restructuring activities | SFr | SFr 0 | SFr 2,617 | SFr 0 | SFr 2,617 | |