Other receivables and assets - Narrative (Details) - EUR (€) € in Thousands |
1 Months Ended | 148 Months Ended | |
|---|---|---|---|
Jun. 30, 2025 |
Mar. 31, 2026 |
Dec. 31, 2025 |
|
| Disclosure Of Other Receivables And Other Assets [Line Items] | |||
| Proceeds from research tax credit | € 5,640 | € 41,300 | |
| Research tax credit ("CIR") | 3,196 | € 3,196 | |
| Current prepaid expenses related to CRO | 961 | ||
| Current advances to suppliers | 2,577 | ||
| 2025, Tax Year | |||
| Disclosure Of Other Receivables And Other Assets [Line Items] | |||
| Research tax credit ("CIR") | 3,196 | ||
| 2026, Tax Year | |||
| Disclosure Of Other Receivables And Other Assets [Line Items] | |||
| Research tax credit ("CIR") | € 1,139 |