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

Commitments and Contingent Liabilities (Schedule of Minimum Lease Payments) (Details)

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Commitments and Contingent Liabilities (Schedule of Minimum Lease Payments) (Details)
€ in Thousands
Dec. 31, 2017
EUR (€)
Disclosure of finance lease and operating lease by lessee [line items]  
Total minimum lease payments € 6,141
2018 [Member]  
Disclosure of finance lease and operating lease by lessee [line items]  
Total minimum lease payments 438
2019 [Member]  
Disclosure of finance lease and operating lease by lessee [line items]  
Total minimum lease payments 438
2020 [Member]  
Disclosure of finance lease and operating lease by lessee [line items]  
Total minimum lease payments 417
2021 Member]  
Disclosure of finance lease and operating lease by lessee [line items]  
Total minimum lease payments 355
2022 and thereafter [Member]  
Disclosure of finance lease and operating lease by lessee [line items]  
Total minimum lease payments € 4,493