Note 9 - Sale of Common Stock (Details) (USD $)	1 Months Ended				1 Months Ended	0 Months Ended	1 Months Ended	3 Months Ended	6 Months Ended		3 Months Ended	6 Months Ended	1 Months Ended	0 Months Ended	1 Months Ended		3 Months Ended		6 Months Ended				1 Months Ended	3 Months Ended				1 Months Ended		1 Months Ended		1 Months Ended
	Jun. 30, 2014	Dec. 31, 2013	Sep. 18, 2013 Warrant Issued For Placement Agent Services [Member] September 2013 SPA [Member]	Feb. 22, 2013 Warrant Issued For Placement Agent Services [Member] February 2013 SPA [Member]	Sep. 18, 2013 September 2013 Warrants [Member] September 2013 SPA [Member]	Jun. 12, 2014 September 2013 Warrants [Member]	Jun. 30, 2014 September 2013 Warrants [Member]	Jun. 30, 2014 September 2013 Warrants [Member]	Jun. 30, 2014 September 2013 Warrants [Member]	Jan. 01, 2014 September 2013 Warrants [Member]	Jun. 30, 2014 September 2013 SPA Option [Member]	Jun. 30, 2014 September 2013 SPA Option [Member]	Feb. 22, 2013 February 2013 Warrants [Member] February 2013 SPA [Member]	Jun. 12, 2014 February 2013 Warrants [Member]	Sep. 18, 2013 February 2013 Warrants [Member]	Jun. 30, 2014 February 2013 Warrants [Member]	Jun. 30, 2014 February 2013 Warrants [Member]	Jun. 30, 2013 February 2013 Warrants [Member]	Jun. 30, 2014 February 2013 Warrants [Member]	Jun. 30, 2013 February 2013 Warrants [Member]	Feb. 22, 2014 February 2013 Warrants [Member]	Jan. 01, 2014 February 2013 Warrants [Member]	Feb. 22, 2013 February 2013 SPA [Member]	Jun. 30, 2014 February 2013 SPA [Member]	Mar. 31, 2014 February 2013 SPA [Member]	Dec. 31, 2013 February 2013 SPA [Member]	Sep. 30, 2013 February 2013 SPA [Member]	Sep. 18, 2013 September 2013 SPA [Member]	Dec. 31, 2013 September 2013 SPA [Member]	Feb. 22, 2013 February 2013 SPA [Member]	Jun. 30, 2014 February 2013 SPA [Member]	Feb. 22, 2013 Additional Issurance Due To Anti-Dilutive Provisions [Member]	Feb. 22, 2014 February 2013 SPA Option [Member]
Note 9 - Sale of Common Stock (Details) [Line Items]
Stock Issued During Period, Shares, New Issues (in Shares)																												29,166,668		26,933,333		40,400,001
Sale of Stock, Price Per Share (in Dollars per share)																												$ 0.06		$ 0.15
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in Shares)	15,907,333		1,485,333	1,885,333	30,625,001								28,818,666															29,166,668		26,933,333
Proceeds from Issuance or Sale of Equity																												$ 1,750,000		$ 4,040,000
Proceeds from Issuance or Sale of Equity, Net																												1,575,000		3,504,000
Term To Hold Share Purchase																												24 months		24 months
(in Shares)	69,760,000	35,666,000																										16,666,667		7,000,000
Right To Purchase Common Stock Shares (in Shares)																												16,666,667		7,000,000
Delivery Period for Common Shares Upon Investors' Request						3 days																						3 days		3 days
Common Stock, Capital Shares Reserved for Future Issuance (in Shares)	69,760,000	35,666,000				11,111,111								11,391,333															16,666,667		19,000,000
Percentage of Common Shares Available for Purchase at Initial Closing																												50.00%		50.00%
Class of Warrant or Right Exercise Period of Warrants or Rights					5 years																									5 years
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per share)					$ 0.08					$ 0.08			$ 0.20									$ 0.08
Class of Warrant or Right Period for Presenting Effective Registration Statement for Avoiding Cashless Exercise of Warrants or Rights					180 days								180 days
Limitation of Beneficially Owned Percentage of Common Stock for Exercise of Warrants					4.99%								4.99%
Discretionary Increase in Limitation of Beneficially Owned Percentage of Common Stock for Exercise of Warrants					9.99%								9.99%
Notice Period for Discretionary Increase in Limitation of Beneficially Owned Percentage of Common Stock for Exercise of Warrants					61 days								61 days
Warrants Grant Date Fair Value							1,807,000	1,807,000	1,807,000		1,166,000	1,166,000									2,759,000												1,211,000
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings								638,000	(423,000)		351,000	292,000					1,501,000	1,626,000	961,000	742,000
Derivative Liability, Fair Value, Gross Liability											0	0				0	0		0
Stock Issued During Period, Shares, Conversion of Units (in Shares)						20,416,667								48,031,111
Stock Issued During Period, Value, Conversion of Units	851,000					204,000	204,000									480,000
(in Shares)															43,228,001
(in Dollars per share)															$ 0.08
Net Proceeds Used For Investor Relations																									1,000,000
Payments For Investor Relations																							$ 500,000	$ 30,000		$ 220,000	$ 250,000