Note 11 - Stock Warrants (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 21, 2012	Sep. 28, 2012	Dec. 31, 2011	Dec. 05, 2007	Dec. 12, 2005	Dec. 31, 2012 Warrant Issued in Connection with Credit Agreement (Member)	Dec. 31, 2010 Warrant Issued in Connection with Credit Agreement (Member)	Dec. 10, 2010 Warrant Issued in Connection with Credit Agreement (Member)	Dec. 31, 2012 Warrant Purchase Limit (Member)	Dec. 31, 2012 Value of Warrants Outstanding (Member)	Dec. 08, 2010 Warrant Issued in Connection with Private Placement Offering (Member)	Dec. 08, 2010 First Placement Agent (Member)	Dec. 08, 2010 Second Placement Agent (Member)
Note 11 - Stock Warrants (Details) [Line Items]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights	354,546	782,259	387,201	881,331	1,235,877	175,000		387,201		881,331	427,713			338,182	16,364
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Item)	1.21	0.85	0.01		0.35	1.25		0.01	0.01	0.01	0.55		1.21
undefined							10 years	10 years	10 years	10 years
Warrants and Rights Outstanding (in Dollars)						$ 25,000						$ 209,000