v3.26.1
Government grant advances and loans - Government Grant Advances (Details)
€ in Thousands, SFr in Thousands, $ in Thousands
12 Months Ended
Jan. 16, 2025
USD ($)
Dec. 31, 2025
EUR (€)
project
Dec. 31, 2025
USD ($)
project
Dec. 31, 2025
CHF (SFr)
project
Dec. 31, 2024
EUR (€)
project
Dec. 31, 2024
USD ($)
project
Dec. 31, 2023
EUR (€)
project
Dec. 31, 2023
USD ($)
project
Feb. 12, 2024
Research and Development Arrangement, Contract to Perform for Others1 [Line Items]                  
Number of collaborative projects   1 1 1 1 1 1 1  
Amount funded from government grant advances $ 2,818 € 465 $ 528 SFr 2,573 € 907 $ 989 € 428 $ 436  
Borrowings, interest rate                 9.50%
Government Grant                  
Research and Development Arrangement, Contract to Perform for Others1 [Line Items]                  
Proceeds received from long-term projects         € 428 $ 503      
Bottom of range [member] | Research project financing                  
Research and Development Arrangement, Contract to Perform for Others1 [Line Items]                  
Borrowings, interest rate   20.90% 20.90% 20.90%          
Top of range [member]                  
Research and Development Arrangement, Contract to Perform for Others1 [Line Items]                  
Term of collaborative project         3 years 3 years 3 years 3 years  
Top of range [member] | Research project financing                  
Research and Development Arrangement, Contract to Perform for Others1 [Line Items]                  
Borrowings, interest rate   22.00% 22.00% 22.00%