Trade and Other Receivables - Additional Information (Details) $ in Thousands	Dec. 31, 2021 EUR (€)	Dec. 31, 2020 USD ($)	Dec. 31, 2020 EUR (€)	Dec. 31, 2019 USD ($)	Dec. 31, 2019 EUR (€)
Trade and other receivables [abstract]
Research tax credit	€ 5,282,000	$ 9,585	€ 7,911,000	$ 8,785	€ 9,585,000
VAT receivables	1,038,000		2,766,000		1,814,000
Credit notes from suppliers	€ 752,000		€ 406,000		€ 408,000

The amount of receivables related to a value added tax.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2021-01-01
-Paragraph 78
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_78_b&doctype=Standard
-URIDate 2021-03-24

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