v3.26.1
Net financial income (loss) - Disclosure of Net Financial Income (loss) (Details) - EUR (€)
€ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure of financial instruments by type of interest rate [line items]      
Interest income on cash and cash equivalents € 985 € 2,629 € 1,217
Foreign exchange gains 1,107 5,220 785
Total financial income 2,092 7,849 2,002
Interest cost (10,265) (7,916) (7,779)
Net impact of accretion, discounting and catch-up on EIB loan (480) 2,832 285
Lease debt interests (130) (170) (203)
Other financial expense (16) 0 0
Losses on fair value variation 0 0 (4,230)
Foreign exchange losses (4,341) (2,235) (2,877)
Financial expenses (15,233) (7,488) (14,803)
Net financial income (loss) (13,141) € 361 € (12,801)
Royalty Financing      
Disclosure of financial instruments by type of interest rate [line items]      
Interest cost € (1,500)