Other income and expenses - Other operating income (Details) - EUR (€) € in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Other income and expenses
Government grants	€ 553	€ 340
Others	180	26
Total other operating income	€ 733	€ 366	€ 3,209

The information about other income expense line items.

No definition available.

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- Definition

The amount of miscellaneous other operating income. [Refer: Other operating income (expense)]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

The amount of operating income that the entity does not separately disclose in the same statement or note.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

The amount of income recognised in relation to government grants. [Refer: Government grants]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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