Results related to associates (Details) - EUR (€)	3 Months Ended
Sep. 30, 2020	Sep. 30, 2019
Wings Therapeutics Inc
Disclosure of associates [line items]
Loss on share of profits of associates	€ 84,000	€ 119,000

The entity's share of the profit (loss) of associates accounted for using the equity method. [Refer: Associates [member]; Investments accounted for using equity method; Profit (loss)]

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