Other non-current assets (Details) - EUR (€) € in Thousands	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Other non-current assets.
Long-term deposit accounts	€ 115		€ 9,000
Advance payments - non-current	1,047	€ 1,047	1,047
Security deposits			8
Other non-current assets	€ 1,162	€ 1,047	€ 10,055

The amount of non-current assets that the entity does not separately disclose in the same statement or note. [Refer: Non-current assets]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2027-01-01
-Name IAS
-Number 1
-IssueDate 2025-01-01
-Paragraph 55
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_55&doctype=Standard
-URIDate 2025-03-27

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant