v3.25.1
Goodwill and impairment of goodwill - Roll-forward (Details) - EUR (€)
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Goodwill and impairment of goodwill    
Goodwill at beginning of period € 69,557,000 € 69,813,000
Exchange differences on goodwill 453,000 (256,000)
Goodwill at end of period € 70,010,000 € 69,557,000