Note 9 - Preferred Stock (Details) (USD $) In Millions, except Share data, unless otherwise specified	1 Months Ended			6 Months Ended	12 Months Ended		1 Months Ended		6 Months Ended	0 Months Ended	1 Months Ended		6 Months Ended	1 Months Ended	6 Months Ended	12 Months Ended	1 Months Ended	6 Months Ended	12 Months Ended
	Apr. 30, 2012	Feb. 28, 2012	May 31, 2011	Jun. 30, 2013	Dec. 31, 2012	Sep. 24, 2012	Sep. 30, 2012 Series A Convertible Preferred Stock [Member]	Feb. 28, 2012 Series A Convertible Preferred Stock [Member]	Jun. 30, 2013 Series A Convertible Preferred Stock [Member]	Jun. 30, 2013 Series B Convertible Preferred Stock (Member)	Sep. 30, 2012 Series B Convertible Preferred Stock (Member)	Apr. 30, 2012 Series B Convertible Preferred Stock (Member)	Jun. 30, 2013 Series B Convertible Preferred Stock (Member)	Sep. 30, 2012 New Price - Series A Convertible Preferred Stock (Member)	Jun. 30, 2012 Series A Convertible Preferred Stock [Member]	Dec. 31, 2012 Series A Convertible Preferred Stock [Member]	Dec. 31, 2012 Series B Convertible Preferred Stock (Member)	Jun. 30, 2012 Series B Convertible Preferred Stock (Member)	Dec. 31, 2012 Series B Convertible Preferred Stock (Member)	Jun. 30, 2013 Series A Convertible Preferred Stock [Member]	Jun. 30, 2013 Series B Convertible Preferred Stock (Member)
Note 9 - Preferred Stock (Details) [Line Items]
Preferred Stock, Shares Authorized				5,000,000					2,000	1,065			1,065
Preferred Stock, Dividend Rate, Percentage				0.00%									0.00%		0.00%			0.00%
Preferred Stock, Par or Stated Value Per Share (in Dollars per share)								$ 1,000.0000				$ 1,000.0000
Proceeds from Issuance of Convertible Preferred Stock (in Dollars)								$ 1.8				$ 1.0
Payments of Stock Issuance Costs (in Dollars)								0.2				0.1
Convertible Preferred Stock, Shares Reserved for Future Issuance								10,000,000				6,300,000
Convertible Preferred Stock, Terms of Conversion							$0.08	$0.20			$0.08	$0.17
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term								5 years				5 years
Proceeds from Issuance or Sale of Equity (in Dollars)								2.0				1.1
Fair Value Assumptions, Expected Volatility Rate	110.00%	110.00%	110.00%		110.00%
Fair Value Assumptions, Risk Free Interest Rate	1.01%	0.82%	1.71%		0.01%
Fair Value Assumptions, Expected Dividend Rate	0.00%	0.00%	0.00%		0.00%
Fair Value Assumptions, Expected Term	5 years	5 years	5 years		3 months
Proceeds from Issuance of Warrants (in Dollars)								0.6				0.3
Dividends, Preferred Stock (in Dollars)							$ 0.4									$ 1.2	$ 0.8		$ 1.2
Class of Warrant or Right, Number of Securities Called by Warrants or Rights			1,100,000			8,132,353	5,000,000				3,100,000	3,100,000
Investment Warrants, Exercise Price (in Dollars per share)							$ 0.20				$ 0.10	$ 0.17		$ 0.10
Conversion of Stock, Shares Converted (in Shares)									2,000
Convertible Preferred Stock, Shares Issued upon Conversion				13,300,000					11,800,000
Preferred Stock, Shares Outstanding																				0	0
Stock Issued During Period, Shares, Conversion of Convertible Securities										1,065