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Cash and Cash Equivalents (Details) - Schedule of Cash and Cash Equivalents - EUR (€)
Jun. 30, 2023
Dec. 31, 2022
Short-term deposits    
Short-term deposits total € 13,925,926 € 3,422
Cash at banks    
Cash at banks total 5,590,033 16,261,932
Total cash and cash equivalents 19,515,959 16,265,354
Deposits Held in U.S. Dollars [Member]    
Short-term deposits    
Short-term deposits total 7,825,926 3,422
Cash at banks    
Cash at banks total 3,340,889 8,645,014
Deposits Held in Euros [Member]    
Short-term deposits    
Short-term deposits total 6,100,000
Cash at banks    
Cash at banks total € 2,249,144 € 7,616,918