Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Finance Lease Obligation (Schedule of Finance Lease Obligation) (Details)

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Finance Lease Obligation (Schedule of Finance Lease Obligation) (Details) - EUR (€)
€ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2010
Disclosure of recognised finance lease as assets by lessee [abstract]      
Leasing institution € 4,020 € 4,338  
Current maturities 330 318  
Leasing institution-long term € 3,690 € 4,020  
Linkage terms EURIBOR EURIBOR  
Interest rate 3.50% 3.50% 3.43%