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Debentures (Schedule of Aggregate Annual Maturities) (Details) - EUR (€)
€ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Disclosure of detailed information about financial instruments [line items]    
Long-term debentures € 72,124 € 44,811
Current maturities 10,600 26,773
Long-term loans 82,724 71,584
Second year [Member]    
Disclosure of detailed information about financial instruments [line items]    
Long-term debentures 13,716 6,927
Third year [Member]    
Disclosure of detailed information about financial instruments [line items]    
Long-term debentures 15,322 8,098
Fourth year [Member]    
Disclosure of detailed information about financial instruments [line items]    
Long-term debentures 24,629 9,714
Fifth year [Member]    
Disclosure of detailed information about financial instruments [line items]    
Long-term debentures 18,457 13,195
Sixth year and thereafter [Member]    
Disclosure of detailed information about financial instruments [line items]    
Long-term debentures € 6,877