Operating Expense - Additional Information (Details) € in Thousands	6 Months Ended
Jun. 30, 2022 EUR (€) employee	Jun. 30, 2021 EUR (€) employee
Disclosure Of Operating Expense [Line Items]
Average number of employees \| employee	127	124
Share-based compensation annual expense	€ 148	€ 217
Profit sharing granted to employees	€ 0

The average number of personnel employed by the entity during a period.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2021-01-01
-Paragraph 112
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_112_c&doctype=Standard
-URIDate 2021-03-24

Name:	ifrs-full_AverageNumberOfEmployees
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration