Note 13 - Warrants (Details) - Common Stock Warrant Liability (USD $)	0 Months Ended	1 Months Ended	12 Months Ended
	Jun. 03, 2013	Oct. 28, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Common Stock Warrant Liability [Abstract]
Common Stock Warrant Liability			$ 3,026	$ 4,283,932	$ 166,398
Fair value of warrants classified as liability	9,100,000	5,300,000	476,261	9,110,302
Gain from the adjustment for the change in fair value included in net income			(204,279)	(8,090,636)	4,117,534
Fair value of warrants classified as equity (see Note 10)				(5,300,572)
Gain from the adjustment for the change in fair value included in net loss				(8,090,636)
Common Stock Warrant Liability			$ 275,008	$ 3,026	$ 4,283,932