| 
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       Retained earnings  | 
    
       
  | 
  |||
| 
       in CHF 1 000  | 
    
       Share capital  | 
    
       Mandatory convertible note  | 
    
       Capital reserves  | 
    
       Treasury shares  | 
    
       Goodwill offset  | 
    
       CF hedging reserve  | 
    
       Other  | 
    
       Trans- lation reserve  | 
    
       Total equity  | 
  
| 
       Balance at 1 January 2023 reported  | 
    
       34 095  | 
    
       59 069  | 
    
       113 162  | 
    
       –2 422  | 
    
       -  | 
    
       –58  | 
    
       –38 916  | 
    
       –16 039  | 
    
       148 891  | 
  
| 
       Restatement 1)  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       –126 280  | 
    
       -  | 
    
       101 652  | 
    
       2 812  | 
    
       –21 816  | 
  
| 
       Balance at 1 January 2023 restated  | 
    
       34 095  | 
    
       59 069  | 
    
       113 162  | 
    
       –2 422  | 
    
       –126 280  | 
    
       –58  | 
    
       62 736  | 
    
       –13 227  | 
    
       127 075  | 
  
| 
       Net profit  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       11 760  | 
    
       -  | 
    
       11 760  | 
  
| 
       Share-based payments  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       67  | 
    
       -  | 
    
       -  | 
    
       1 001  | 
    
       -  | 
    
       1 068  | 
  
| 
       Change in Cash Flow Hedging  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       58  | 
    
       -  | 
    
       -  | 
    
       58  | 
  
| 
       Goodwill offset  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       –1 127  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       –1 127  | 
  
| 
       Purchase of treasury shares  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       –1 832  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       –1 832  | 
  
| 
       Sale of treasury shares  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       1 475  | 
    
       -  | 
    
       -  | 
    
       17  | 
    
       -  | 
    
       1 492  | 
  
| 
       Capital increase, creation of reserve shares  | 
    
       17  | 
    
       -  | 
    
       46  | 
    
       –63  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       -  | 
  
| 
       Translation adjustment  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       –7 005  | 
    
       –7 005  | 
  
| 
       Balance at 31 December 2023 restated  | 
    
       34 112  | 
    
       59 069  | 
    
       113 208  | 
    
       –2 775  | 
    
       –127 407  | 
    
       -  | 
    
       75 514  | 
    
       –20 232  | 
    
       131 489  | 
  
| 
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
  
| 
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       Retained earnings  | 
    
       
  | 
  |||
| 
       in CHF 1 000  | 
    
       Share capital  | 
    
       Mandatory convertible note  | 
    
       Capital reserves  | 
    
       Treasury shares  | 
    
       Goodwill offset  | 
    
       CF hedging reserve  | 
    
       Other  | 
    
       Trans- lation reserve  | 
    
       Total equity  | 
  
| 
       Balance at 1 January 2024 restated  | 
    
       34 112  | 
    
       59 069  | 
    
       113 208  | 
    
       –2 775  | 
    
       –127 407  | 
    
       -  | 
    
       75 514  | 
    
       –20 232  | 
    
       131 489  | 
  
| 
       Net profit  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       27 253  | 
    
       -  | 
    
       27 253  | 
  
| 
       Share-based payments  | 
    
       -  | 
    
       -  | 
    
       –8  | 
    
       368  | 
    
       -  | 
    
       -  | 
    
       1 426  | 
    
       -  | 
    
       1 786  | 
  
| 
       Change in Cash Flow Hedging  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       62  | 
    
       -  | 
    
       -  | 
    
       62  | 
  
| 
       Goodwill offset 2)  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       –23 775  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       –23 775  | 
  
| 
       Purchase of treasury shares  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       –5 925  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       –5 925  | 
  
| 
       Sale of treasury shares  | 
    
       -  | 
    
       -  | 
    
       73  | 
    
       2 616  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       2 689  | 
  
| 
       Conversion of mandatory convertible note 3)  | 
    
       11 537  | 
    
       –54 804  | 
    
       43 267  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       -  | 
  
| 
       Transaction costs on conversion of mandatory convertible note  | 
    
       -  | 
    
       1 019  | 
    
       –1 767  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       –748  | 
  
| 
       Translation adjustment  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       -  | 
    
       3 821  | 
    
       3 821  | 
  
| 
       Balance at 31 December 2024  | 
    
       45 649  | 
    
       5 284  | 
    
       154 773  | 
    
       –5 716  | 
    
       –151 182  | 
    
       62  | 
    
       104 193  | 
    
       –16 411  | 
    
       136 652  | 
  
1) Refer to note "2.2.1 Change to the Consolidation and Valuation Principles - Accounting for Goodwill".
2) Refer to note "3 Change in Scope of Consolidation".
3) Refer to note "17 Equity".