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Subsequent Events (Details Narrative) - Round Enterprises Ltd and Eardley Holding AG [Member] - EUR (€)
€ in Thousands
6 Months Ended
Jun. 30, 2021
Aug. 15, 2021
Expected receivable from promissory note   € 1,200
August 2021 [Member]    
Annual interest rate 2.50%  
Promissory note € 1,200