Note 1 - Basis of Presentation and General Information (Details) - Consolidated Revenue from Major Charters	3 Months Ended	9 Months Ended			3 Months Ended	9 Months Ended
	Sep. 30, 2013 Charterer A [Member]	Sep. 30, 2014 Charterer A [Member]	Sep. 30, 2013 Charterer A [Member]	Sep. 30, 2013 Charterer B [Member]	Sep. 30, 2014 Charterer C [Member]	Sep. 30, 2014 Charterer C [Member]
Charterer
Charterer	16.00%	11.00%	14.00%	20.00%	37.00%	26.00%