Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Consolidated Statements of Operations [Abstract]
Revenues	$ 35,973	$ 27,304	$ 43,492
Operating expenses:
Voyage expenses	1,151	1,142	61
Voyage expenses to Parent	461	346	560
Vessel operating expenses	17,590	16,730	16,004
General, administrative and technical management fees	5,445	4,768	5,585
Management fees to Parent	2,671	2,471	2,464
Depreciation	15,564	14,814	14,769
Total operating expenses	42,882	40,271	39,443
Operating (loss) income	(6,909)	(12,967)	4,049
Other (expense) income:
Other expense	(17)	(28)	(32)
Interest income	23	5	9
Interest expense	(4,455)	(4,252)	(4,422)
Other expense, net	(4,449)	(4,275)	(4,445)
Loss before income taxes	(11,358)	(17,242)	(396)
Income tax expense	(34)	(28)	(34)
Net loss	$ (11,392)	$ (17,270)	$ (430)
Net loss per share of common and Class B stock:
Net loss per share-basic (in dollars per share)	$ (0.36)	$ (0.78)	$ (0.02)
Net loss per share-diluted (in dollars per share)	$ (0.36)	$ (0.78)	$ (0.02)
Dividends declared per share of common and Class B Stock (in dollars per share)	$ 0.05	$ 0.24	$ 0.45