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General principles for the preparation of the consolidated financial statements - Additional Information (Detail) - EUR (€) € in Thousands	Dec. 31, 2022	Dec. 31, 2021
Disclosure of general principles for the preparation of the consolidated financial statements [Line Items]
Cash and cash equivalents	€ 54,475	€ 53,472
Unused credit facility	€ 24,307	€ 14,947

X

- Definition

The amount of cash on hand and demand deposits, along with short-term, highly liquid investments that are readily convertible to known amounts of cash and that are subject to an insignificant risk of changes in value. [Refer: Cash; Cash equivalents]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-IssueDate 2022-03-24
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-IssueDate 2022-03-24
-Paragraph B13
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-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2022-en-r&anchor=para_B13_a&doctype=Appendix&subtype=B
-URIDate 2022-03-24

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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-URIDate 2022-03-24

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Balance Type:	debit
Period Type:	instant

X

- Definition

The amount of undrawn borrowing facilities that may be available for future operating activities and to settle capital commitments. [Refer: Capital commitments]

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 7
-IssueDate 2022-03-24
-Paragraph 50
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2022-en-r&anchor=para_50_a&doctype=Standard
-URIDate 2022-03-24

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X

- Definition

Disclosure of general principles for the preparation of the consolidated financial statements [Line Items]

+ References

No definition available.

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