Vessels (Details Textual) (USD $)	12 Months Ended
	Dec. 31, 2012 Vessels	Dec. 31, 2011 Vessels	Dec. 31, 2010	Dec. 31, 2007
Number Of Dry Bulk Vessels	45
Vessels Delivered		8
Gain (Loss) on Disposition of Property	$ 0	$ (526,130)	$ (435,169)
Estimated Present Value Of Above Market Charters				4,531,115
Estimated Present Value Of Below Market Charters				32,867,920
Amortization Of Fair Value Below Contract Value Of Time Charter Acquired	4,770,214	5,088,268	4,754,407
Supramax Vessels [Member]
Proceeds from Sale of Productive Assets		22,511,226
Gain (Loss) on Disposition of Property		$ 509,076