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Financial risk management objectives and policies - Capital management 2 (Table) (Details) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Financial risk management objectives and policies [abstract]    
Debt in accordance with IFRS (long and short-term borrowings) $ 36,868 $ 41,538
Add: Unamortized debt discount 295 122
Interest bearing loans 37,163 41,660
Less: Cash and bank balances and bank deposits (including restricted cash) 1,396 2,966
Net debt $ 35,767 $ 38,694