Financing (Details 7) - USD ($) $ / shares in Units, shares in Thousands	6 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Debt Conversion [Line Items]
Warrants	27,816	33,333
Warrants, Fair Value	$ 3	$ 2
Warrants Issued With Debentures 2008 [Member]
Debt Conversion [Line Items]
Warrants, Expiration Year	2015
Warrants, Anti-Dilution Adjusted Exercise Price	$ 0.0015	$ 0.0015
Warrants	14,237	15,871
Warrants, Fair Value	$ 1	$ 1
Warrants Issued With Debentures 2010 [Member]
Debt Conversion [Line Items]
Warrants, Expiration Year	2015
Warrants, Anti-Dilution Adjusted Exercise Price	$ 0.0015	$ 0.0015
Warrants	1,540	5,423
Warrants, Fair Value	$ 1	$ 1
Warrants Issued With Debentures 2011 [Member]
Debt Conversion [Line Items]
Warrants, Expiration Year	2016
Warrants, Anti-Dilution Adjusted Exercise Price	$ 0.0015	$ 0.0015
Warrants	3,884	3,884
Warrants, Fair Value	$ 0	$ 0
Warrants Issued With Debentures 2012 [Member]
Debt Conversion [Line Items]
Warrants, Expiration Year	2017
Warrants, Anti-Dilution Adjusted Exercise Price	$ 0.0015	$ 0.0015
Warrants	2,330	2,330
Warrants, Fair Value	$ 0	$ 0
Series D Convertible Preferred Stock [Member]
Debt Conversion [Line Items]
Warrants, Expiration Year	2017
Warrants, Anti-Dilution Adjusted Exercise Price	$ 0.0015	$ 0.0015
Warrants	5,825	5,825
Warrants, Fair Value	$ 1	$ 0