Leases - Disclosure of Contractual Maturities of Financial Liabilities (Details) - CHF (SFr) SFr in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|---|---|---|---|
| Disclosure of maturity analysis of operating lease payments [line items] | |||
| Total contractual cash-flows | SFr 3,686 | SFr 2,464 | |
| Carrying Amount lease liabilities | 3,644 | 2,444 | SFr 3,652 |
| Less than 1 year | |||
| Disclosure of maturity analysis of operating lease payments [line items] | |||
| Total contractual cash-flows | 1,229 | 1,232 | |
| Between 1 and 2 years | |||
| Disclosure of maturity analysis of operating lease payments [line items] | |||
| Total contractual cash-flows | 1,229 | 1,232 | |
| Between 2 and 5 years | |||
| Disclosure of maturity analysis of operating lease payments [line items] | |||
| Total contractual cash-flows | 1,229 | 0 | |
| More than 5 years | |||
| Disclosure of maturity analysis of operating lease payments [line items] | |||
| Total contractual cash-flows | SFr 0 | SFr 0 |