Financial Risk Management - Additional Information (Detail) - EUR (€) |
6 Months Ended | 12 Months Ended | |
|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Dec. 31, 2025 |
|
| Financial investments at fair value through profit or loss | |||
| Basis points change in interest rates | 100.00% | ||
| Increase (decrease) in profit or loss | € 665,000 | € 907,000 | |
| Capital commitments | € 0 | ||
| Percentage Of Increase Decrease In Warrant Price | 10.00% | ||
| Warrants [member] | |||
| Financial investments at fair value through profit or loss | |||
| Adjustments for increase (decrease) in derivative financial liabilities | € 731,000 | 9,000 | |
| Other price risk [member] | |||
| Financial investments at fair value through profit or loss | |||
| Financial investments at fair value through profit or loss | € 7,305,000 | € 70,000 | |