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Investee Companies and other investments (Summary of Information on Operating Results) (Details) - EUR (€) € in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Disclosure of associates [line items] |  |  |
Income for the year | € 18,988 | € 18,117 | € 13,636
Elimination of interest on loan from related party | 868 | 1,130 |
Company's share of income of investee | € 3,086 | € 2,545 | € 1,531
Dori Energy [Member] |  |  |
Disclosure of associates [line items] |  |  |
Rate of ownership as of December 31 | 50.00% | 50.00% |
Income for the year | € 5,281 | € 3,668 |
Company's share | 2,640 | 1,834 |
Elimination of interest on loan from related party | 868 | 1,130 |
Other Adjustments | (422) | (419) |
Company's share of income of investee | € 3,086 | € 2,545 |

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