Note 11 - Warrant Transactions (Details) (USD $)	0 Months Ended	3 Months Ended				0 Months Ended	1 Months Ended								3 Months Ended
	Mar. 10, 2014	Mar. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Mar. 05, 2013 Exercised [Member] Series 1 and 2 MATT Inc. [Member]	Mar. 10, 2014 Venture Lending & Leasing VI and VII [Member]	Apr. 30, 2013 Venture Lending & Leasing VI and VII [Member]	Mar. 31, 2006 Scott, Richard L Series #2 and #3 [Member]	Mar. 31, 2006 Scott, Richard L. Series #2 [Member]	Mar. 31, 2006 Scott, Richard L. Series #3 [Member]	Feb. 19, 2010 Allen, F. Stephen Series #2 and #3 [Member]	Mar. 31, 2014 Stearns, Robert [Member]	Dec. 31, 2013 Stearns, Robert [Member]	Mar. 31, 2006 Stearns, Robert [Member]	Mar. 31, 2014 Series 1 and 2 MATT Inc. [Member]	Mar. 05, 2013 Series 1 and 2 MATT Inc. [Member]	Jan. 25, 2008 Series 1 and 2 MATT Inc. [Member]	Oct. 31, 2006 Series 1 and 2 MATT Inc. [Member]	Oct. 31, 2006 Series 1, MATT Inc [Member]	Oct. 31, 2006 Series 2, MATT Inc [Member]	Jan. 25, 2008 MATT Note [Member]
Note 11 - Warrant Transactions (Details) [Line Items]
Warrants Aggregate Exercise Price (in Dollars)							$ 800,000									$ 2,000,000
Exercise Value Increase First Tranche (in Dollars)							200,000
Exercise Value Increase Second and Third Tranche (in Dollars)							300,000
Warrants Expiration Term							10 years
		168,366				168,366
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Item)		3.00		2.61		1.96			4.00	7.00	3.55	3.55		3.55			2.75
Stock Issued During Period, Shares, Other		89,230				89,230
Increase (Decrease) in Fair Value of Outstanding Warrants (in Dollars)	355,954
Class of Warrant or Right, Number of Securities Called by Warrants or Rights					2,147			1,000,000						200,000				1,000,000
Class of Warrant or Right, Outstanding		2,812,414	3,111,690	3,111,690							1,000,000	200,000	200,000		1,270,571
Class Of Warrant Or Right Exercise Price Of Warrants Or Rights Minimum (in Dollars per share)																			$ 12.50
Class of Warrant or Right, Exercise Price of Warrants or Rights Maximum (in Dollars per share)																				$ 15.00
Debt Instrument, Interest Rate, Stated Percentage																					4.46%
Debt Instrument, Unamortized Discount (in Dollars)																					$ 1,341,692
Class of Warrant or Right, Forfeitures															130,910