| 
       2022 in CHF 1 000  | 
    
       Goodwill  | 
    
       Brand  | 
    
       Technology  | 
    
       Customer relationships  | 
    
       Other  | 
    
       Total  | 
  
| 
       Acquisition costs  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
  
| 
       Balance at 1 January 2022  | 
    
       120 930  | 
    
       10 889  | 
    
       7 377  | 
    
       37 940  | 
    
       7 742  | 
    
       184 878  | 
  
| 
       Additions  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       225  | 
    
       225  | 
  
| 
       Disposal  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       –26  | 
    
       –26  | 
  
| 
       Business combinations  | 
    
       5 175  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       467  | 
    
       5 642  | 
  
| 
       Translation adjustment  | 
    
       –2 692  | 
    
       –409  | 
    
       –42  | 
    
       –3 406  | 
    
       –488  | 
    
       –7 037  | 
  
| 
       Balance at 31 December 2022  | 
    
       123 413  | 
    
       10 480  | 
    
       7 335  | 
    
       34 534  | 
    
       7 920  | 
    
       183 682  | 
  
| 
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
  
| 
       Accumulated amortization  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
  
| 
       Balance at 1 January 2022  | 
    
       –96 564  | 
    
       –6 734  | 
    
       –7 377  | 
    
       –3 370  | 
    
       –2 286  | 
    
       –116 331  | 
  
| 
       Amortization  | 
    
       –5 359  | 
    
       –266  | 
    
       -  | 
    
       –2 216  | 
    
       –1 835  | 
    
       –9 676  | 
  
| 
       Disposal  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       26  | 
    
       26  | 
  
| 
       Translation adjustment  | 
    
       326  | 
    
       17  | 
    
       42  | 
    
       144  | 
    
       112  | 
    
       641  | 
  
| 
       Balance at 31 December 2022  | 
    
       –101 597  | 
    
       –6 983  | 
    
       –7 335  | 
    
       –5 442  | 
    
       –3 983  | 
    
       –125 340  | 
  
| 
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
  
| 
       Net book value  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
  
| 
       1 January 2022  | 
    
       24 366  | 
    
       4 155  | 
    
       -  | 
    
       34 570  | 
    
       5 456  | 
    
       68 547  | 
  
| 
       31 December 2022  | 
    
       21 816  | 
    
       3 497  | 
    
       -  | 
    
       29 092  | 
    
       3 937  | 
    
       58 342  | 
  
| 
       2021 in CHF 1 000  | 
    
       Goodwill  | 
    
       Brand  | 
    
       Technology  | 
    
       Customer relationships  | 
    
       Other  | 
    
       Total  | 
  
| 
       Acquisition costs  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
  
| 
       Balance at 1 January 2021  | 
    
       96 136  | 
    
       6 711  | 
    
       7 419  | 
    
       3 176  | 
    
       2 871  | 
    
       116 313  | 
  
| 
       Additions  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       262  | 
    
       262  | 
  
| 
       Disposal  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       –13  | 
    
       –13  | 
  
| 
       Reclassification  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       84  | 
    
       84  | 
  
| 
       Business combinations  | 
    
       25 233  | 
    
       4 190  | 
    
       -  | 
    
       34 858  | 
    
       4 569  | 
    
       68 850  | 
  
| 
       Translation adjustment  | 
    
       –439  | 
    
       –12  | 
    
       –42  | 
    
       –94  | 
    
       –31  | 
    
       –618  | 
  
| 
       Balance at 31 December 2021  | 
    
       120 930  | 
    
       10 889  | 
    
       7 377  | 
    
       37 940  | 
    
       7 742  | 
    
       184 878  | 
  
| 
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
  
| 
       Accumulated amortization  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
  
| 
       Balance at 1 January 2021  | 
    
       –96 136  | 
    
       –6 711  | 
    
       –7 419  | 
    
       –3 176  | 
    
       –1 951  | 
    
       –115 393  | 
  
| 
       Amortization  | 
    
       –420  | 
    
       –24  | 
    
       -  | 
    
       –197  | 
    
       –364  | 
    
       –1 005  | 
  
| 
       Disposal  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       13  | 
    
       13  | 
  
| 
       Translation adjustment  | 
    
       –8  | 
    
       1  | 
    
       42  | 
    
       3  | 
    
       16  | 
    
       54  | 
  
| 
       Balance at 31 December 2021  | 
    
       –96 564  | 
    
       –6 734  | 
    
       –7 377  | 
    
       –3 370  | 
    
       –2 286  | 
    
       –116 331  | 
  
| 
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
  
| 
       Net book value  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
  
| 
       1 January 2021  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       920  | 
    
       920  | 
  
| 
       31 December 2021  | 
    
       24 366  | 
    
       4 155  | 
    
       -  | 
    
       34 570  | 
    
       5 456  | 
    
       68 547  |