v3.25.4

Intangible Assets - Summary of Goodwill (Detail) - EUR (€) € in Thousands | 12 Months Ended
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Dec. 31, 2025 | Dec. 31, 2024
Disclosure of detailed information about intangible assets [line items] |  |
Intangible assets at beginning period | € 4,028 |
Intangible assets at ending period | 3,710 | € 4,028
Goodwill [member] |  |
Disclosure of detailed information about intangible assets [line items] |  |
Intangible assets at beginning period | 3,495 |
Intangible assets at ending period | 3,495 | 3,495
Computer software [member] |  |
Disclosure of detailed information about intangible assets [line items] |  |
Intangible assets at beginning period | 533 |
Intangible assets at ending period | 215 | 533
Gross carrying amount [member] |  |
Disclosure of detailed information about intangible assets [line items] |  |
Intangible assets at beginning period | 5,867 | 5,791
Additions | 172 | 76
Intangible assets at ending period | 6,039 | 5,867
Gross carrying amount [member] | Goodwill [member] |  |
Disclosure of detailed information about intangible assets [line items] |  |
Intangible assets at beginning period | 3,495 | 3,495
Intangible assets at ending period | 3,495 | 3,495
Gross carrying amount [member] | Computer software [member] |  |
Disclosure of detailed information about intangible assets [line items] |  |
Intangible assets at beginning period | 2,372 | 2,296
Additions | 172 | 76
Intangible assets at ending period | 2,544 | 2,372
Amortization and impairment [member] |  |
Disclosure of detailed information about intangible assets [line items] |  |
Intangible assets at beginning period | (1,839) | (1,372)
Amortization Charge | (490) | (467)
Intangible assets at ending period | (2,329) | (1,839)
Amortization and impairment [member] | Computer software [member] |  |
Disclosure of detailed information about intangible assets [line items] |  |
Intangible assets at beginning period | (1,839) | (1,372)
Amortization Charge | (490) | (467)
Intangible assets at ending period | € (2,329) | € (1,839)

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- Definition The amount of additions to intangible assets other than goodwill, other than those acquired through business combinations. [Refer: Total for all business combinations [member]; Intangible assets other than goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2025-01-01 -Paragraph 118 -Subparagraph e -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2025-en-r&anchor=para_118_e_i&doctype=Standard -URIDate 2025-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Note Effective 2027-01-01 -Name IFRS -Number 19 -IssueDate 2025-01-01 -Paragraph 263 -Subparagraph e -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_263_e_i&doctype=Standard -URIDate 2025-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Note Effective 2027-01-01 -Name IFRS -Number 19 -IssueDate 2025-01-01 -Paragraph 263 -Subparagraph e -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_263_e_i&doctype=Standard -URIDate 2025-03-27 + Details
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