SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013 Segment Vessel	Dec. 31, 2012	Dec. 31, 2011
Segment reporting
Number of reportable segment	1
Revenue and voyage expense recognition
Net (gain) loss on purchase and sale of bunker fuel	$ 108	$ (72)	$ (521)
Number of vessels in vessel pool	4
Due from charterers, net
Due from charterers, reserve	104	154
Accrual related to estimated customer claims	231	7
Vessels, net
Useful lives	25 years
Depreciation expense	15,553	14,798	14,754
Estimated scrap value (per lwt)	245
Deferred drydocking costs [Abstract]
Amortization expense for drydocking of vessels	0	0	0
Impairment of long-lived assets [Abstract]
Impairment charges	$ 0	$ 0	$ 0
Minimum [Member]
Deferred drydocking costs [Abstract]
Drydocking period of vessels	30 months
Maximum [Member]
Deferred drydocking costs [Abstract]
Drydocking period of vessels	60 months