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Condensed Consolidated Unaudited Interim Statements of Changes in Equity € in Thousands, $ in Thousands | Share capital [Member] EUR (€) | Share capital [Member] USD [Member] USD ($) | [2] | Share Premium [Member] EUR (€) | Share Premium [Member] USD [Member] USD ($) | [2] | Retained earnings (accumulated deficit) [Member] EUR (€) | Retained earnings (accumulated deficit) [Member] USD [Member] USD ($) | [2] | Treasury shares [Member] EUR (€) | Treasury shares [Member] USD [Member] USD ($) | [2] | Translation reserve from foreign operations [Member] EUR (€) | Translation reserve from foreign operations [Member] USD [Member] USD ($) | [2] | Hedging Reserve [Member] EUR (€) | Hedging Reserve [Member] USD [Member] USD ($) | [2] | Total [Member] EUR (€) | Total [Member] USD [Member] USD ($) | [2] | Non-controlling Interests [Member] EUR (€) | Non-controlling Interests [Member] USD [Member] USD ($) | [2] | EUR (€) | USD [Member] USD ($) | [2]
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Balance at Dec. 31, 2016 | [1] | € 19,980 |  |  | € 58,334 |  |  | € 5,816 |  |  | € (1,722) |  |  | € 2,664 |  |  |  |  |  | € 85,072 |  |  | € (701) |  |  | € 84,371 |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss for the year |  |  |  |  |  |  |  | (5,166) |  |  |  |  |  |  |  |  |  |  |  | (5,166) |  |  | (243) |  |  | (5,409) |  |
Other comprehensive loss for the year |  |  |  |  |  |  |  |  |  |  |  |  |  | 714 |  |  |  |  |  | 714 |  |  | (8) |  |  | 706 |  |
Total comprehensive loss for the year |  |  |  |  |  |  |  | (5,166) |  |  |  |  |  | 714 |  |  |  |  |  | (4,452) |  |  | (251) |  |  | (4,703) |  |
Transactions with owners of the Company, recognized directly in equity: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based payments |  |  |  |  | 2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 |  |  |  |  |  | 2 |  |
Own shares acquired |  |  |  |  |  |  |  |  |  |  | (14) |  |  |  |  |  |  |  |  | (14) |  |  |  |  |  | (14) |  |
Balance at Jun. 30, 2017 |  | 19,980 |  |  | 58,336 |  |  | 650 |  |  | (1,736) |  |  | 3,378 |  |  |  |  |  | 80,608 |  |  | (952) |  |  | 79,656 |  |
Balance at Dec. 31, 2016 | [1] | 19,980 |  |  | 58,334 |  |  | 5,816 |  |  | (1,722) |  |  | 2,664 |  |  |  |  |  | 85,072 |  |  | (701) |  |  | 84,371 |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss for the year | [1] |  |  |  |  |  |  | (6,115) |  |  |  |  |  |  |  |  |  |  |  | (6,115) |  |  | (526) |  |  | (6,641) |  |
Other comprehensive loss for the year | [1] |  |  |  |  |  |  |  |  |  |  |  |  | (445) |  |  | 138 |  |  | (307) |  |  | 86 |  |  | (221) |  |
Total comprehensive loss for the year | [1] |  |  |  |  |  |  | (6,115) |  |  |  |  |  | (445) |  |  | 138 |  |  | (6,422) |  |  | (440) |  |  | (6,862) |  |
Transactions with owners of the Company, recognized directly in equity: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based payments | [1] |  |  |  | 5 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5 |  |  |  |  |  | 5 |  |
Own shares acquired | [1] |  |  |  |  |  |  |  |  |  | (14) |  |  |  |  |  |  |  |  | (14) |  |  |  |  |  | (14) |  |
Balance at Dec. 31, 2017 |  | 19,980 | [1] | $ 23,292 | 58,339 | [1] | $ 68,010 | (299) | [1] | $ (347) | (1,736) | [1] | $ (2,024) | 2,219 | [1] | $ 2,587 | 138 | [1] | $ 161 | 78,641 | [1] | $ 91,679 | (1,141) | [1] | $ (1,329) | 77,500 | [1] | $ 90,350
Statement Line Items [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss for the year |  |  |  |  |  |  |  | (898) |  | (1,048) |  |  |  |  |  |  |  |  |  | (898) |  | (1,048) | (236) |  | (276) | (1,134) |  | (1,324)
Other comprehensive loss for the year |  |  |  |  |  |  |  |  |  |  |  |  |  | (822) |  | (958) | (246) |  | (287) | (1,068) |  | (1,245) | 23 |  | 27 | (1,045) |  | (1,218)
Total comprehensive loss for the year |  |  |  |  |  |  |  | (898) |  | (1,048) |  |  |  | (822) |  | (958) | (246) |  | (287) | (1,966) |  | (2,293) | (213) |  | (249) | (2,179) |  | (2,542)
Transactions with owners of the Company, recognized directly in equity: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based payments |  |  |  |  | 2 |  | 3 |  |  |  |  |  |  |  |  |  |  |  |  | 2 |  | 3 |  |  |  | 2 |  | 3
Balance at Jun. 30, 2018 |  | € 19,980 |  | $ 23,292 | € 58,341 |  | $ 68,013 | € (1,197) |  | $ (1,395) | € (1,736) |  | $ (2,024) | € 1,397 |  | $ 1,629 | € (108) |  | $ (126) | € 76,677 |  | $ 89,389 | € (1,354) |  | $ (1,578) | € 75,323 |  | $ 87,811
[1] | The data was taken from the audited annual financial statements.
[2] | Convenience translation into US$ (exchange rate as at June 30, 2018: euro 1 = US$ 1.166)

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