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PREPAID EXPENSES AND OTHER CURRENT ASSETS (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
PREPAID EXPENSES AND OTHER CURRENT ASSETS    
Vessel stores $ 638 $ 597
Capitalized contract costs 1,952 2,289
Prepaid items 2,870 3,426
Insurance receivable 2,039 851
Advance to agents 1,162 1,109
Other 1,388 2,177
Total prepaid expenses and other current assets $ 10,049 $ 10,449