Note 1 - Basis of Presentation and General Information - Consolidated Revenue from Major Charters (Details)		3 Months Ended		9 Months Ended
		Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Charterer A [Member] | Successor [Member] | Customer Concentration Risk [Member] | Sales Revenue, Net [Member]
Percentage of consolidated charter revenue	[1]		12.00%		23.00%

[1] Charter revenue from a pool that the Company participated.