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Operating expenses - Research and Development, Additional Information (Details) € in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 EUR (€) employee | Dec. 31, 2023 EUR (€) employee | Dec. 31, 2022 EUR (€) employee
Disclosure Of Operating Expenses [Line Items] |  |  |
Increase/ decrease in employee benefit expense | € (1,600) | € 100 |
Increase (decrease) in employee benefit expense, percentage | (15.10%) | 1.40% |
End of period headcount) (employee) | employee | 108 | 102 | 102
Share-based payments | € 4,298 | € 3,222 | € 3,174
R&D |  |  |
Disclosure Of Operating Expenses [Line Items] |  |  |
Increase in purchases, sub-contracting and other expenses | € 700 | € 6,000 |
Increase in purchases, sub-contracting and other expenses, percentage | 2.50% | 29.20% |
End of period headcount) (employee) | employee | 77 | 76 | 74
Increase (decrease) in number of employees | employee | 1 | 2 | 1
Share-based payments | € 500 | € 400 | € 300

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- Details
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