Note 10 - Convertible Notes and Warrants (Details) (USD $)	0 Months Ended		1 Months Ended		3 Months Ended			6 Months Ended		12 Months Ended				0 Months Ended	1 Months Ended	2 Months Ended	3 Months Ended		6 Months Ended											0 Months Ended	1 Months Ended		9 Months Ended				0 Months Ended		1 Months Ended	3 Months Ended		6 Months Ended								0 Months Ended	3 Months Ended	6 Months Ended			1 Months Ended	3 Months Ended	6 Months Ended				1 Months Ended	3 Months Ended		6 Months Ended						6 Months Ended			1 Months Ended	3 Months Ended		6 Months Ended				1 Months Ended	3 Months Ended	6 Months Ended			0 Months Ended	1 Months Ended	0 Months Ended	3 Months Ended	6 Months Ended		3 Months Ended	6 Months Ended		6 Months Ended	0 Months Ended
	May 27, 2014	Apr. 14, 2014	Jun. 30, 2014	Feb. 22, 2013	Jun. 30, 2014	Mar. 31, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013	Jan. 16, 2013	Dec. 31, 2012	Feb. 22, 2011 2011 Warrants [Member] Expiration Date Februrary 22, 2016 [Member]	Jun. 12, 2014 2011 Warrants [Member]	Jun. 30, 2014 2011 Warrants [Member]	Feb. 22, 2013 2011 Warrants [Member]	Jun. 30, 2014 2011 Warrants [Member]	Jun. 30, 2013 2011 Warrants [Member]	Jun. 30, 2014 2011 Warrants [Member]	Jun. 30, 2013 2011 Warrants [Member]	May 27, 2014 2011 Warrants [Member]	Apr. 14, 2014 2011 Warrants [Member]	Dec. 31, 2013 2011 Warrants [Member]	Jan. 16, 2013 2011 Warrants [Member]	Dec. 31, 2012 2011 Warrants [Member]	Feb. 22, 2011 2011 Warrants [Member]	Dec. 31, 2013 2012 $0.15 Warrants [Member]	Jul. 02, 2012 2012 $0.15 Warrants [Member]	Jul. 02, 2012 2012 $0.25 Warrants [Member]	Jan. 16, 2013 Third Tranche Warrants [Member]	Feb. 22, 2013 Warrants 2011 and 2012 [Member] Securities Purchase Agreement [Member]	Feb. 22, 2013 Warrants 2011 and 2012 [Member] February 2013 Amendment and Waiver Agreement [Member]	Sep. 18, 2013 Warrants 2011 and 2012 [Member] February 2013 Amendment and Waiver Agreement [Member]	Jul. 02, 2012 2012 Warrants [Member] 2012 $0.15 Warrants [Member]	Jul. 02, 2012 2012 Warrants [Member] 2012 $0.25 Warrants [Member]	Feb. 22, 2013 2012 Warrants [Member] 2012 $0.098 Warrants [Member]	Jun. 12, 2014 2012 Warrants [Member]	Jul. 02, 2012 2012 Warrants [Member]	Jun. 30, 2014 2012 Warrants [Member]	Jun. 30, 2014 2012 Warrants [Member]	Jun. 30, 2013 2012 Warrants [Member]	Jun. 30, 2014 2012 Warrants [Member]	Jun. 30, 2013 2012 Warrants [Member]	May 27, 2014 2012 Warrants [Member]	Apr. 14, 2014 2012 Warrants [Member]	Dec. 31, 2013 2012 Warrants [Member]	Feb. 22, 2013 2012 Warrants [Member]	Jan. 16, 2013 2012 Warrants [Member]	Dec. 31, 2012 2012 Warrants [Member]	Apr. 14, 2014 April 2014 Warrants [Member]	Jun. 30, 2013 April 2014 Warrants [Member]	Jun. 30, 2014 April 2014 Warrants [Member]	Jun. 30, 2013 April 2014 Warrants [Member]	May 27, 2014 April 2014 Warrants [Member]	May 27, 2014 May 2014 Warrants [Member]	Jun. 30, 2013 May 2014 Warrants [Member]	Jun. 30, 2014 May 2014 Warrants [Member]	Jun. 30, 2013 May 2014 Warrants [Member]	Apr. 14, 2014 May 2014 Warrants [Member]	Sep. 18, 2013 February 2013 Amendment and Waiver Agreement [Member]	Feb. 22, 2013 2011 Convertible Notes [Member]	Jun. 30, 2014 2011 Convertible Notes [Member]	Jun. 30, 2013 2011 Convertible Notes [Member]	Jun. 30, 2014 2011 Convertible Notes [Member]	Jun. 30, 2013 2011 Convertible Notes [Member]	Sep. 18, 2012 2011 Convertible Notes [Member]	Dec. 31, 2011 2011 Convertible Notes [Member]	Feb. 22, 2011 2011 Convertible Notes [Member]	Feb. 22, 2011 Convertible Notes [Member] First Tranche [Member]	Jun. 30, 2014 Convertible Notes [Member]	Feb. 22, 2011 Convertible Notes [Member]	Feb. 22, 2011 2012 Convertible Notes [Member] Second Tranche [Member]	Feb. 22, 2013 2012 Convertible Notes [Member]	Jun. 30, 2014 2012 Convertible Notes [Member]	Jun. 30, 2013 2012 Convertible Notes [Member]	Jun. 30, 2014 2012 Convertible Notes [Member]	Jun. 30, 2013 2012 Convertible Notes [Member]	Sep. 18, 2013 2012 Convertible Notes [Member]	Dec. 31, 2012 2012 Convertible Notes [Member]	Feb. 22, 2013 Third Tranche Convertible Notes [Member]	Jun. 30, 2014 Third Tranche Convertible Notes [Member]	Jun. 30, 2014 Third Tranche Convertible Notes [Member]	Sep. 18, 2013 Third Tranche Convertible Notes [Member]	Jan. 16, 2013 Third Tranche Convertible Notes [Member]	Apr. 14, 2014 April 2014 Convertible Notes and Warrants [Member]	May 27, 2014 May 2014 Convertible Notes and Warrants [Member]	Aug. 06, 2014 August 2014 Convertible Notes and Warrants [Member]	Jun. 30, 2014 April 2014 Convertible Notes [Member]	Jun. 30, 2014 April 2014 Convertible Notes [Member]	Apr. 14, 2014 April 2014 Convertible Notes [Member]	Jun. 30, 2014 May 2014 Convertible Notes [Member]	Jun. 30, 2014 May 2014 Convertible Notes [Member]	May 27, 2014 May 2014 Convertible Notes [Member]	Jun. 30, 2013 2011 Warrants [Member]	Jan. 16, 2013 Third Tranche Warrants [Member]	Apr. 14, 2014 April 2014 Warrants [Member]
Note 10 - Convertible Notes and Warrants (Details) [Line Items]
Debt Instrument, Interest Rate, Stated Percentage																																																																				5.00%						5.00%		5.00%					5.00%	5.00%		5.00%						5.00%			5.00%
Debt Instrument, Face Amount																																																																				$ 4,000,000																						$ 250,000			$ 250,000
Class of Warrant or Right, Outstanding (in Shares)																							17,940,780			40,000,000	7,065,255																							4,166,667		4,166,667					4,166,667
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per share)													$ 0.15			$ 0.098							$ 0.098			$ 0.15	$ 0.098	$ 0.15	$ 0.25	$ 0.15		$ 0.098		$ 0.15	$ 0.25	$ 0.098														$ 0.09		$ 0.09		$ 0.09	$ 0.09		$ 0.09		$ 0.09
Debt Instrument Additional Debt Funding from Investors																																																																				2,000,000	1,000,000			1,000,000
Number of Tranches																																																																							2
Amount of additional debt funding available in each separate tranche																																																																							1,000,000
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in Shares)			15,907,333		15,907,333			15,907,333					40,000,000															10,000,000	10,000,000	2,500,000				10,000,000	10,000,000	16,315,790		20,000,000																	4,166,667
Convertible Debt			4,994,355		4,994,355			4,994,355		4,494,355																																																																										250,000
Class of Warrant or Right Exercise Period of Warrants or Rights																														5 years								5 years												5 years					5 years
Class of Warrant or Right Number of Shares Exercisable Under Warrants (in Shares)																															50,000,000	81,578,946
Class of Warrant or Right Volume Weighted Average Price of Warrants or Rights (in Dollars per share)																																$ 0.155	$ 0.3705
Class Of Warrant Or Right Number Of Securities Called By Warrants Or Rights Under Forfeiture (in Shares)																																12,500,000
Debt Instrument Relinquishment of Right to Purchase Amount, Maximum																																750,000
Debt Instrument, Convertible, Conversion Price (in Dollars per share)																																																												$ 0.06		$ 0.06		$ 0.06										$ 0.06		$ 0.06					$ 0.06	$ 0.06								$ 0.06			$ 0.06
Proceeds from Issuance of Convertible Notes and Warrants	500,000	500,000						500,000	250,000																																											45,000			3,000																														250,000	250,000	250,000
Interest Payable			268,000		268,000			268,000		144,000
Debt Instrument Period Considered in Year for Calculation of Interest																																																																360 days
Long Term Debt Percentage of Outstanding Principal Amount Redeemed under Change of Control																																																																						130.00%
Long Term Debt Percentage of Accrued and Unpaid Interest																																																																						100.00%
Class of Warrant or Right Warrants Issued (in Shares)																65,263,156																																				4,166,667					4,166,667
Payment to Warrant Holders as Percentage of Exercise Price																			30.00%
Class of Warrant or Right Period for Presenting Effective Registration Statement for Avoiding Cashless Exercise of Warrants or Rights																																						5 years
Change in Fair Value of Convertible Notes and Warrants, Percentage						10.00%
Gains (Losses) on Extinguishment of Debt									(1,283,000)	(1,283,000)																																																				480,000	3,107,000	280,000	354,000									200,000	620,000	80,000	463,000				52,000	5,000						(29,000)	(29,000)		8,000	8,000
Long-term Debt, Gross																																																																							3,208,000								417,000					142,000									247,000			205,000
Debt Instrument, Unamortized Discount																																																																			792,000												583,000					108,000						45,000			3,000
Convertible Debt, Fair Value Disclosures																																																													6,070,000																			386,000
Amortization of Debt Discount (Premium)			8,000	95,000				8,000	95,000																																																				38,000												55,000							2,000								8,000	8,000		200	200
Write-off of Debt Discount																																																													265,000												462,000							106,000
Financial and Nonfinancial Liabilities, Fair Value Disclosure	7,793,000	7,536,000	4,663,000	17,490,000	4,663,000		11,064,000	4,663,000	11,064,000	7,217,000	12,592,000	11,898,000				3,916,000		1,809,000		1,809,000	179,000	179,000	179,000	2,000,000	2,000,000					300,000											979,000		979,000	141,000	141,000	141,000	1,632,000	1,800,000	1,800,000	58,000		4,000		58,000	3,000		6,000									4,920,000							1,516,000					1,390,000					361,000
Derivative Liability, Fair Value, Gross Liability															0		0	1,809,000	0	1,809,000										300,000									0	0		0								58,000		4,000			3,000		6,000					3,010,000	4,380,000	3,010,000	4,380,000									930,000	1,180,000	930,000	1,180,000				232,000	232,000		394,000				242,000	242,000		239,000	239,000	254,000			261,000
Change in Fair Value of Warrant Liabilities					2,873,000		6,113,000	1,867,000	2,114,000								238,000	(2,118,000)	59,000	104,000																				112,000	979,000	94,000	21,000								41,000		41,000			(3,000)		(3,000)
Stock Issued During Period, Shares, Conversion of Units (in Shares)														11,960,520																							4,710,170
Stock Issued During Period, Value, Conversion of Units			851,000											120,000	120,000																						47,000		47,000
Common Stock, Capital Shares Reserved for Future Issuance (in Shares)			69,760,000		69,760,000			69,760,000		35,666,000				6,882,287																							4,710,170
Delivery Period for Common Shares Upon Investors' Request														3 years																							3 years
(in Shares)																		17,940,780		17,940,780																					7,065,255		7,065,255
Common Stock Shares Issued Upon Conversion of Warrants (in Shares)																																											4,733,721																																																			12,020,323
								851,000	2,003,000																																		159,000																																																			359,000
Proceeds from Convertible Debt																																																																																															$ 108,000