v3.25.2
Right-of-use assets, long-term financial assets and lease liabilities (Details) - CHF (SFr)
SFr in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Right-of-use of leased assets:        
Balance, beginning of period     SFr 5,437  
Additions     0  
Depreciation SFr (260) SFr (169) (511) SFr (337)
Balance, end of period SFr 4,926   4,926  
Variable lease payments that are not included in the measurement of lease obligations     SFr 0  
Buildings        
Right-of-use assets and lease liabilities:        
Weighted average incremental borrowing rate 3.50%   3.50%  
Right-of-use of leased assets:        
Balance, beginning of period     SFr 5,320  
Depreciation     (497)  
Balance, end of period SFr 4,823   SFr 4,823  
Office Equipment        
Right-of-use assets and lease liabilities:        
Weighted average incremental borrowing rate 3.30%   3.30%  
Right-of-use of leased assets:        
Balance, beginning of period     SFr 91  
Depreciation     (11)  
Balance, end of period SFr 80   SFr 80  
IT Equipment        
Right-of-use assets and lease liabilities:        
Weighted average incremental borrowing rate 7.20%   7.20%  
Right-of-use of leased assets:        
Balance, beginning of period     SFr 26  
Depreciation     (3)  
Balance, end of period SFr 23   SFr 23