v3.26.1
Financial liabilities - Additional Information (Details) - EUR (€)
€ in Thousands
1 Months Ended 12 Months Ended
Aug. 30, 2019
Jul. 03, 2017
Jul. 31, 2024
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2019
Dec. 31, 2018
Disclosure of financial liabilities [Line Items]                  
Proceeds from borrowings       € 0 € 0 € 0      
Financial liabilities       22,571 € 30,995 € 39,893 € 42,251    
Write-off of a right-of-use asset       500          
Write-off of a lease liability       € 700          
Loan agreement with Société Générale                  
Disclosure of financial liabilities [Line Items]                  
Loan agreement, collateral   € 15,200              
Proceeds from borrowings € 13,900                
Borrowings, maturity period 12 years                
Financial liabilities               € 14,826 € 14,826
Security interest on pledge of financial instruments will be released in 2024   4,200              
Security interest on pledge of financial instruments will be released in 2027   5,000              
Security interest on pledge of financial instruments will be released in 2031   € 6,000              
Security interest on pledge of financial instruments released     € 4,200            
Loan agreement with Société Générale | Fixed interest rate                  
Disclosure of financial liabilities [Line Items]                  
Borrowings, interest rate       2.01%