Note 5 - Stockholders' Equity (Details) - Stock Purchase Warrant Transactions (USD $)	9 Months Ended
	Sep. 30, 2013
Stock Purchase Warrant Transactions [Abstract]
Outstanding at December 31, 2012 (in Shares)	11,225,559
Outstanding at December 31, 2012	$ 2.06
Issued (in Dollars)	$ 0
Issued	$ 0
Exercised (in Shares)	(2,933,333)
Exercised	$ 0.56
Forfeited or expired (in Shares)	0
Forfeited or expired	$ 0
Outstanding at September 30, 2013 (in Shares)	8,292,226
Outstanding at September 30, 2013	$ 2.53
Exercisable at September 30, 2013 (in Shares)	8,292,226
Exercisable at September 30, 2013	$ 2.53