Results of operation - Research and Development expenses - Additional Information (Details) - EUR (€) |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Research and Development expenses | ||||
| Capitalized costs | € (700,000) | € (154,000) | € (1,600,000) | |
| Increase (Decrease) in research and development expense. | € (1,200,000) | € (2,100,000) | ||
| Percentage of increase (decrease) in research and development expense. | (11.20%) | (10.20%) | ||
| Research and development expenses before capitalization | € 9,500,000 | 10,800,000 | € 18,500,000 | 20,600,000 |
| Research and development expenses | ||||
| Research and Development expenses | ||||
| Capitalized costs | € (691,000) | € (154,000) | € (1,554,000) | |