The cash inflow from sales of goods and rendering of services.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 7
-IssueDate 2019-01-01
-Paragraph 14
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2019-en-r&anchor=para_14_a&doctype=Standard
-URIDate 2019-03-27

Name:	ifrs-full_ReceiptsFromSalesOfGoodsAndRenderingOfServices
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Contingent Liabilities (Details) - EUR (€) € in Thousands	3 Months Ended
Contingent Liabilities (Details) - EUR (€) € in Thousands	Mar. 31, 2021	Mar. 31, 2020	Nov. 08, 2018
Universitair Medisch Centrum Utrecht
Contingent Liabilities
Disputed amount		€ 1,300	€ 880
State of Mecklenburg-Western Pomerania ("MVP")
Contingent Liabilities
Disputed amount	€ 2,300
Amounts received on invoices	€ 2,300