15. Trade and Other Receivables (Details) - EUR (€) € in Thousands	Dec. 31, 2019	Dec. 31, 2018
Disclosure of Trade and Other Receivable [Line Items]
Trade receivables	€ 204	€ 210
Value-added tax receivables
Disclosure of Trade and Other Receivable [Line Items]
Other receivables	€ 453	€ 839

The amount receivable by the entity that it does not separately disclose in the same statement or note.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 1
-IssueDate 2019-01-01
-Paragraph 78
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_78_b&doctype=Standard
-URIDate 2019-03-27

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