Note 11 - Warrants (Details) (USD $)	1 Months Ended			6 Months Ended
	Jun. 30, 2013	Jun. 03, 2013	Sep. 30, 2009	Jun. 30, 2013	Jun. 30, 2012	May 30, 2013	Feb. 26, 2013	Dec. 31, 2012
Note 11 - Warrants (Details) [Line Items]
Proceeds from Warrant Exercises				$ 200,000
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in Shares)	2,100,000			2,100,000			6,036,219
Proceeds from Issuance of Warrants			7,100,000
Proceeds from Issuance of Warrants, Net			6,300,000
Common Stock and Warrants Issued, Shares (in Shares)			2,018,153
Common Stock, Shares, Issued (in Shares)	61,823,340		1,009,076	61,823,340				37,967,708
Investment Warrants, Exercise Price (in Dollars per share)			$ 5.24
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Outstanding, Weighted Average Remaining Contractual Terms			66 months	4 years
Class of Warrant or Right, Outstanding (in Shares)	13,828,622			13,828,622		6,294,674		7,863,653
Reclassification From Equity to Liability	9,100,000	9,100,000
Common Stock Warrant Liability	4,733,817			4,733,817				4,283,932
Change in Fair Value of Common Stock Warrant Liability				8,660,417	(369,723)
Warrant Liability [Member]
Note 11 - Warrants (Details) [Line Items]
Change in Fair Value of Common Stock Warrant Liability				8,700,000
Warrant [Member]
Note 11 - Warrants (Details) [Line Items]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in Shares)	71,250			71,250
May Offering [Member]
Note 11 - Warrants (Details) [Line Items]
Class of Warrant or Right, Outstanding (in Shares)	6,294,674			6,294,674
Common Stock Warrant Liability	$ 9,110,302			$ 9,110,302