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ACCOUNTS PAYABLE AND ACCRUED EXPENSES (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Dec. 31, 2012
ACCOUNTS PAYABLE AND ACCRUED EXPENSES    
Accounts payable $ 512 $ 430
Accrued vessel operating expenses 1,489 1,622
Accrued general and administrative expenses 141 111
Total $ 2,142 $ 2,163