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Financial risk management objectives and policies - Capital management 2 (Table) (Details) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Financial risk management objectives and policies [abstract]    
Debt in accordance with IFRS (long & short-term borrowings) $ 41,538 $ 65,572
Add: Unamortized debt discount 122 206
Interest bearing loans 41,660 65,778
Less: Cash and bank balances and bank deposits (including restricted cash) 2,966 373
Net debt $ 38,694 $ 65,405