Note 1 - Basis of Presentation and General Information (Details) (USD $)	9 Months Ended	1 Months Ended	0 Months Ended	3 Months Ended				1 Months Ended	3 Months Ended
	Sep. 30, 2013	Oct. 28, 2013 Subsequent Event [Member] Korea Line Corporation [Member]	May 09, 2013 Korea Line Corporation [Member]	Sep. 30, 2013 Korea Line Corporation [Member]	Mar. 31, 2013 Korea Line Corporation [Member]	Jan. 03, 2013 Korea Line Corporation [Member]	Dec. 31, 2011 Korea Line Corporation [Member]	Sep. 30, 2013 Korea Line Corporation [Member]	Sep. 30, 2013 Korea Line Corporation [Member]	Jun. 30, 2013 Korea Line Corporation [Member]	Sep. 30, 2013 Supramax Vessels [Member]	Sep. 30, 2013 Handymax Vessels [Member]
Note 1 - Basis of Presentation and General Information (Details) [Line Items]
Vessels In Operation	45						13				43	2
Dead Weight Tonnage Of Operating Fleet	2,451,259
Average Age In Years Of Operating Fleet	6 years
Percentage Of Charterer Revenue	10.00%
Adjusted Chartered Rate Value							$ 17,000
Contract Receivable						63,700,000
Investment Owned, Balance, Shares (in Shares)						1,224,094		566,529	566,529
Contract Receivable, Due in Next Twelve Months					10,300,000
Contract Receivable, Due after Year One					53,400,000
Bunker Liabilities Released					3,500,000
Deferred Revenue					13,700,000
Investment Owned, Balance, Principal Amount					5,900,000
Accounts and Notes Receivable, Net					2,700,000
Termination Revenue					32,800,000
Gain (Loss) on Contract Termination	29,033,503			3,500,000	3,300,000
Reduction Of Shares Outstanding					1 to 15
Reduction Of Long Term Receivable					90.00%
Share-based Goods and Nonemployee Services Transaction, Shares Approved for Issuance (in Shares)					538,751
Other Expenses					3,000,000
Share-based Goods and Nonemployee Services Transaction, Securities Issued			538,751
Incremental Gain on Trading Shares										32,500,000
Proceeds From Charter Agreement Termination Receivable		3,900,000
Investment Owned, Shares Sold (in Shares)								55,628	55,628
Proceeds from Sale of Available-for-sale Securities, Equity								2,200,000
Available-for-sale Securities, Gross Realized Losses								400,000
Investment Owned, at Fair Value								22,100,000	22,100,000
Other than Temporary Impairment Losses, Investments									$ 7,300,000