Unconsolidated Entities (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Schedule of Equity Method Investments [Line Items]
Total Equity in Net (Loss) Income of Unconsolidated Entities	$ (75)	$ 651	$ (345)	$ 581
Oslo Bulk AS [Member]
Schedule of Equity Method Investments [Line Items]
Total Equity in Net (Loss) Income of Unconsolidated Entities	(137)	618	(97)	899
Oslo Bulk Holding Pte, Ltd (formerly Tony Bulkers) [Member]
Schedule of Equity Method Investments [Line Items]
Total Equity in Net (Loss) Income of Unconsolidated Entities	132	0	(240)	(239)
Other [Member]
Schedule of Equity Method Investments [Line Items]
Total Equity in Net (Loss) Income of Unconsolidated Entities	$ (70)	$ 33	$ (8)	$ (79)