Note 7 - Warrants (Details) (USD $)	0 Months Ended	3 Months Ended			6 Months Ended		12 Months Ended									6 Months Ended	1 Months Ended				1 Months Ended											1 Months Ended			0 Months Ended		6 Months Ended
	Oct. 15, 2012	Jun. 30, 2013	Jun. 30, 2012	Mar. 31, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2011	Apr. 30, 2013	Dec. 28, 2012	Jun. 08, 2010	Oct. 23, 2012 Reduction in Exercise Price - Original Amount (Member) Summer 2012 Warrants [Member]	Oct. 23, 2012 Reduction in Exercise Price - Reduced Amount (Member) Summer 2012 Warrants [Member]	Jun. 30, 2013 Winter 2013 Warrants (Member)	Oct. 23, 2012 Summer 2012 Warrants [Member]	Dec. 31, 2012 Winter 2012 Warrants [Member]	Jun. 30, 2013 Winter 2012 Warrant Extension [Member]	Dec. 27, 2012 Fall 2011 Warrants [Member]	Mar. 31, 2012 Fall 2011 Warrants [Member]	Mar. 31, 2012 Spring 2009 One-Year Warrant [Member]	Nov. 30, 2009 Spring 2009 One-Year Warrant [Member]	Dec. 28, 2012 Spring 2010 Warrants [Member]	Jul. 31, 2010 Spring 2010 Warrants [Member]	Jul. 31, 2010 Spring 2010 Eighteen Month Warrant [Member]	Jul. 31, 2010 Spring 2010 Thirty-Six Month Warrant [Member]	Jul. 15, 2011 Spring 2010 Warrant Extension [Member]	Jul. 15, 2011 Spring 2009 Warrants [Member]	Nov. 30, 2009 Spring 2009 Warrants [Member]	Nov. 30, 2009 Spring 2009 3-year warrant (Member)	Oct. 15, 2012 Fall 2008 Warrants [Member]	Jul. 15, 2011 Fall 2008 One-Year Warrant [Member]	Jul. 15, 2011 Fall 2008 One-Year Warrant [Member] Initial Price [Member]	Sep. 28, 2011 Fall 2008 Three-Year Warrant [Member]	Jul. 15, 2011 Fall 2008 Three-Year Warrant [Member]	Jul. 15, 2011 Fall 2008 Three-Year Warrant [Member] Initial Price [Member]	Jul. 23, 2012 Other Warrants [Member]	Dec. 28, 2012 Other Warrants [Member]	Jun. 30, 2012 Convertible Notes Oustanding [Member]
Note 7 - Warrants (Details) [Line Items]
Amortization of Debt Discount (Premium) (in Dollars)					$ 233,000	$ 364,209																															$ 364,209
Class of Warrant or Right, Number of Securities Called by Warrants or Rights									50,000	50,000			2,333,329	2,771,671	3,127,914			1,335,201		1,238,935		1,527,842	763,235	763,235		2,477,870		1,238,935	2,892,000	1,446,000			1,446,000		250,000	50,000
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Item)								1,833		0.50	0.55	0.50	0.55		0.50				0.50				0.75	1.00			0.75	1.00		0.75	1.00		1.00	2.00	0.40
Interest Expense, Other (in Dollars)																233,000
Warrant Extension Period, Years					1 year											1 year
Expiration Date Extension	3 years																1 year				1 year											1 year
Derivative Liability, Fair Value, Amount Not Offset Against Collateral (in Dollars)																	102,852								57,089		95,885					180,172			67,500	6,805
Stock or Unit Option Plan Expense (in Dollars)				150,143			30,029
Selling, General and Administrative Expense (in Dollars)		$ 475,273	$ 1,468,230		$ 934,910	$ 2,107,675																													$ 62,100