Note 9 - Stock Warrants (Details) (USD $)	Sep. 30, 2013	Feb. 08, 2013	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2011	Dec. 08, 2010	Dec. 12, 2005
Note 9 - Stock Warrants (Details) [Line Items]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights	354,546	427,713	782,259	1,235,877	1,235,877
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Item)	1.21	0.55	0.85	0.35	0.35	1.21
Number of Years							10 years
Warrants Issued, Fair Value Disclosure (in Dollars)		$ 209,000
Warrants Issued in Connection with Private Placement Offering [Member]
Note 9 - Stock Warrants (Details) [Line Items]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights			387,201
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Item)			0.01
Number of Years		10 years
First Placement Agent [Member]
Note 9 - Stock Warrants (Details) [Line Items]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights						338,182
Second Placement Agent [Member]
Note 9 - Stock Warrants (Details) [Line Items]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights						16,364