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

Financial Instruments (Schedule of Reconciliation Financial Instruments Carried at Fair Value) (Details)

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Financial Instruments (Schedule of Reconciliation Financial Instruments Carried at Fair Value) (Details) - EUR (€)
€ in Thousands
2 Months Ended 12 Months Ended
Dec. 31, 2017
Dec. 31, 2017
Dec. 31, 2016
Disclosure of fair value measurement of assets [line items]      
Balance as at Beginning [1]   € 1,265 € 4,470
Balance as at Ending € 1,249 1,249 1,265 [1]
Income receivable in connection with the Erez Electricity PSP [Member] | Level 3 [Member]      
Disclosure of fair value measurement of assets [line items]      
Balance as at Beginning   1,265 1,148
Total income recognized in profit or loss   17 56
Exercise of first option to acquire additional shares  
Foreign Currency translation adjustments   (33) 61
Balance as at Ending 1,249 1,249 € 1,265
Income receivable in connection with the concession project [Member] | Level 3 [Member]      
Disclosure of fair value measurement of assets [line items]      
Balance as at Beginning 28,927    
Total income recognized in profit or loss 793    
Proceeds from receivable from concession project (738)    
Foreign Currency translation adjustments 29    
Balance as at Ending € 29,011 € 29,011  
[1] Please refer to note 2C for functional and presentation currency.