Note 9 - Stock Warrants (Details) (USD $)	0 Months Ended					1 Months Ended
	Dec. 12, 2005	Jun. 30, 2014	Mar. 31, 2014	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012 Warrant Issued in Connection with Credit Agreement (Member)	Mar. 07, 2014 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 9 - Stock Warrants (Details) [Line Items]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights		84,000	354,546	354,546	782,259		270,546	427,713			338,182	16,364
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per share)		$ 1.21	$ 1.21	$ 1.21	$ 0.85			$ 0.55		$ 1.21
Number of Years	10 years					10 years
Warrants and Rights Outstanding (in Dollars)									$ 209,000