Financing (Details 5) (USD $) In Thousands, except Share data, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Debt Conversion [Line Items]
Face Value	$ 40,920	$ 28,887
Fair Value	107,018	64,292
Common Stock Shares	238,987,299	22,696,138
Debentures 2006 Series [Member]
Debt Conversion [Line Items]
Face Value	2,263	6,180
Fair Value	7,858	14,758
Common Stock Shares	17,386,106	5,196,283
Debentures 2007 Series [Member]
Debt Conversion [Line Items]
Face Value	1,150	6,856
Fair Value	3,001	17,172
Common Stock Shares	6,707,442	6,098,480
Debentures 2008 Series [Member]
Debt Conversion [Line Items]
Face Value	1,216	6,468
Fair Value	5,234	15,492
Common Stock Shares	11,511,771	5,487,497
Debentures 2009 Series [Member]
Debt Conversion [Line Items]
Face Value	172	1,644
Fair Value	876	3,565
Common Stock Shares	1,919,461	1,243,390
Debentures 2010 Series [Member]
Debt Conversion [Line Items]
Face Value		3,806
Fair Value		7,178
Common Stock Shares		2,512,724
Debentures 2011 Series [Member]
Debt Conversion [Line Items]
Face Value	864	1,954
Fair Value	2,557	3,080
Common Stock Shares	5,687,898	1,084,237
Debentures 2012 Series [Member]
Debt Conversion [Line Items]
Face Value	612	1,979
Fair Value	1,786	3,047
Common Stock Shares	3,974,950	1,073,527
Debentures 2013 Series [Member]
Debt Conversion [Line Items]
Face Value	34,643
Fair Value	$ 85,706
Common Stock Shares	191,799,671