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PREPAID EXPENSES AND OTHER CURRENT ASSETS (Details) (USD $)
 12 Months Ended
Dec. 31, 2011
Dec. 31, 2012
Dec. 31, 2010
PREPAID EXPENSES AND OTHER CURRENT ASSETS [Abstract]      
Prepaid expenses $ 2,714,000 $ 3,137,000  
Deposit on Contracts, Nordic Galaxy 9,000,000 0 9,000,000
Deferred Financing Costs 653,000 1,228,000  
Voyage in Progress, temporarily spot charters 5,233,000 0  
Working Capital, cooperative arrangements 12,779,000 0  
Other 1,389,000 1,184,000  
Total at year end 31,768,000 5,549,000  
Decrease in prepaid expenses $ 26,300,000