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Segment information - Additional information (Details) € in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2025 EUR (€) segment customer | Dec. 31, 2024 EUR (€) customer | Dec. 31, 2023 EUR (€) customer
Segment information |  |  |
Number of reportable segments | segment | 3 |  |
Number Of Customers With Sales Larger than 10% | customer | 1 | 1 | 1
Revenue | € 267,633 | € 266,765 | € 256,127
Belgium |  |  |
Segment information |  |  |
Revenue | 6,157 | 6,564 | 8,265
Customer one with sales greater than 10% | Medical Segment |  |  |
Segment information |  |  |
Revenue | € 60,735 | € 50,500 | € 39,868

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