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Financial Instruments (Narrative) (Details) - EUR (€) € in Thousands | 1 Months Ended |  |  |  |
--- | --- | --- | --- | --- | ---
Jun. 30, 2018 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Disclosure of financial assets [line items] |  |  |  |  |  |  |
Cash and cash equivalents |  |  | € 44,509 | € 36,882 |  | € 23,962 | € 22,486
Marketable Securities |  |  | 2,242 | 2,132 |  |  |
Short-term restricted cash | [1] |  | 22,162 | 1,315 | [2] |  |
Non-current restricted cash |  |  | 10,956 | 5,400 | [2] |  |
Trade receivables |  |  | 805 | 156 |  |  |
Revenue receivables |  |  | 1,075 | 3,830 |  |  |
Government authorities receivables |  |  | € 781 | € 2,706 |  |  |
Talasol [Member] |  |  |  |  |  |  |
Disclosure of financial assets [line items] |  |  |  |  |  |  |
Output percentage of financial power swap |  | 80.00% |  |  |  |  |
Period of financial power swap |  | 10 years |  |  |  |  |
[1] | On December 16, 2019, the Company announced its intention to repay the entire outstanding principal of the Company's Series
[2] | Reclassified, see Note 2E

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