v3.26.1
Operating costs - Additional Information (Details) - CHF (SFr)
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure      
Increase (decrease) in total operating costs SFr (200,000) SFr (700,000)  
Increase (decrease) in external research and development costs   (500,000)  
Increase (decrease) in D&O insurance   (400,000)  
Increase (decrease) in depreciation of intangible assets   200,000  
Operating costs SFr 2,987,458 3,165,275 SFr 3,860,155 [1]
Discontinued operations      
Disclosure      
Operating costs   SFr 2,000,000 SFr 8,100,000
[1] The comparative information has been re-presented due to discontinued operations that have been reclassed to the financial line called “Net profit or loss from discontinued operations” (note 23). In the other sections of these consolidated financial statements an asterisk will indicate where comparative information has been re-presented