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Leases (Schedule of Right-of-use Assets) (Details) - EUR (€) € in Thousands | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Balance at January 1 |  |  |
Depreciation for the year | 321 |  |
Balance at December 31 | 15,401 |  |
Talmei Yosef [Member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Balance at January 1 |  |  |
Balance at December 31 | 1,585 |  |
Spain [Member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Balance at January 1 |  |  |
Balance at December 31 | 1,160 |  |
Talasol [Member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Balance at January 1 |  |  |
Balance at December 31 | 12,656 |  |
Italy [Member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Balance at January 1 |  |  |
Balance at December 31 |  |  |
Depreciation [Member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Balance at January 1 |  |  |
Depreciation for the year | 321 |  |
Disposals | (113) |  |
Balance at December 31 | 208 |  |
Depreciation [Member] | Talmei Yosef [Member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Balance at January 1 |  |  |
Depreciation for the year | 103 |  |
Disposals |  |  |
Balance at December 31 | 103 |  |
Depreciation [Member] | Spain [Member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Balance at January 1 |  |  |
Depreciation for the year | 75 |  |
Disposals |  |  |
Balance at December 31 | 75 |  |
Depreciation [Member] | Talasol [Member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Balance at January 1 |  |  |
Depreciation for the year | 30 |  |
Disposals |  |  |
Balance at December 31 | 30 |  |
Depreciation [Member] | Italy [Member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Balance at January 1 |  |  |
Depreciation for the year | 113 |  |
Disposals | (113) |  |
Balance at December 31 |  |  |
Gross carrying amount [member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Balance at January 1 |  |  |
Additions | 16,906 |  |
Disposals | (1,469) |  |
Effect of changes in exchange rates | 172 |  |
Balance at December 31 | 15,609 |  |
Gross carrying amount [member] | Talmei Yosef [Member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Balance at January 1 |  |  |
Additions | 1,516 |  |
Disposals |  |  |
Effect of changes in exchange rates | 172 |  |
Balance at December 31 | 1,688 |  |
Gross carrying amount [member] | Spain [Member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Balance at January 1 |  |  |
Additions | 1,235 |  |
Disposals |  |  |
Effect of changes in exchange rates |  |  |
Balance at December 31 | 1,235 |  |
Gross carrying amount [member] | Talasol [Member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Balance at January 1 |  |  |
Additions | 12,686 |  |
Disposals |  |  |
Effect of changes in exchange rates |  |  |
Balance at December 31 | 12,686 |  |
Gross carrying amount [member] | Italy [Member] |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |
Balance at January 1 |  |  |
Additions | 1,469 |  |
Disposals | (1,469) |  |
Effect of changes in exchange rates |  |  |
Balance at December 31 |  |  |

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