v3.26.1
Retirement benefits obligations - Balance sheet (Details) - CHF (SFr)
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Defined benefit plans      
Percentage of contributions by employee 40.00%    
Percentage of contributions by employer 60.00%    
Paid pension contributions related to continuing activities SFr 60,392 SFr 34,686 SFr 23,454
Net gain on pension (32,243) 45,425 (12,219)
Net defined benefit (liability) asset (371,608) (164,251)  
Funded status (371,608) (164,251)  
Increase (decrease) in shortfall of defined benefit plan 200,000    
Defined benefit obligation      
Defined benefit plans      
Net defined benefit (liability) asset (5,126,017) (2,108,384) (9,138,045)
Fair value of plan assets      
Defined benefit plans      
Net defined benefit (liability) asset SFr 4,754,409 SFr 1,944,133 SFr 8,694,521
Swiss Life      
Defined benefit plans      
Percentage of capital and interest guarantee 100.00%