v3.26.1
Right-of-use assets, long-term financial assets and lease liabilities (Details) - CHF (SFr)
SFr in Thousands
 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Right-of-use of leased assets:    
Balance, beginning of period SFr 4,540  
Additions 0  
Depreciation (460) SFr (511)
Balance, end of period 4,080  
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 5.50%  
Right-of-use of leased assets:    
Balance, beginning of period SFr 4,469  
Depreciation (447)  
Balance, end of period SFr 4,022  
Office Equipment    
Right-of-use assets and lease liabilities:    
Weighted average incremental borrowing rate 3.30%  
Right-of-use of leased assets:    
Balance, beginning of period SFr 51  
Depreciation (11)  
Balance, end of period SFr 40  
IT Equipment    
Right-of-use assets and lease liabilities:    
Weighted average incremental borrowing rate 7.20%  
Right-of-use of leased assets:    
Balance, beginning of period SFr 20  
Depreciation (3)  
Balance, end of period SFr 17