v3.26.1
Cash and cash equivalents and financial assets - Cash and cash equivalents (Details) - CHF (SFr)
SFr in Thousands
Jun. 30, 2026
Dec. 31, 2025
Jun. 30, 2025
Dec. 31, 2024
Cash and cash equivalents [Abstract]        
Cash and cash equivalents SFr 27,757 SFr 26,795 SFr 25,722 SFr 36,275