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Operating expenses - Disclosure of Selling, General and Administrative Expenses (Details) - EUR (€) € in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Analysis of income and expense [abstract] |  |  |
Purchases, fees and other expenses | € (8,073) | € (9,889) | € (7,792)
Payroll costs (including share-based payments) | (11,986) | (11,772) | (9,688)
Depreciation, amortization and provision expenses | (467) | (387) | (378)
Total SG&A expenses | € (20,527) | € (22,049) | € (17,857)

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- Definition The amount of expense relating to selling, general and administrative activities of the entity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 85 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_85&doctype=Standard -URIDate 2024-03-27 + Details
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