Note 1 - Basis of Presentation and General Information (Details) - Consolidated Revenue from Major Charters	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Charterer
Charterer			10.00%
Charterer A [Member]
Charterer
Charterer			27.00%
Charterer B [Member]
Charterer
Charterer		10.00%
Charterer C [Member]
Charterer
Charterer	15.00%	27.00%	13.00%	26.00%
Charterer D [Member]
Charterer
Charterer		11.00%		11.00%