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Deferred charges, net (Table) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Deferred Costs, Noncurrent [Abstract]    
Balance $ 11,259 $ 11,782
Additions 2,635 3,949
Amortization (4,200) (4,472)
Write - off (125)  
Balance $ 9,569 $ 11,259