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Accrued liabilities and other payables (Table) (Details) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Accrued liabilities and other payables [Abstract]    
Accrued interest $ 274 $ 1,266
Accrued audit fees 0 64
Other accruals 996 1,065
Insurance deductibles 139 134
Other payables 46 80
Total $ 1,455 $ 2,609