Financing (Details 5) (USD $) In Thousands, except Share data, unless otherwise specified	6 Months Ended	12 Months Ended
	Jun. 30, 2014	Dec. 31, 2013
Debt Conversion [Line Items]
Debentures, Face Value	$ 35,924	$ 41,017
Debentures, Fair Value	34,942	38,250
Debentures, Common Stock Shares	32,949,714	15,619,639,000
Debentures 2006 Series [Member]
Debt Conversion [Line Items]
Debentures, Face Value	1,962	1,962
Debentures, Fair Value	2,011	2,008
Debentures, Common Stock Shares	1,912,226	819,019,000
Debentures 2007 Series [Member]
Debt Conversion [Line Items]
Debentures, Face Value	819	839
Debentures, Fair Value	927	533
Debentures, Common Stock Shares	878,436	216,720,000
Debentures 2008 Series [Member]
Debt Conversion [Line Items]
Debentures, Face Value	2,017	2,047
Debentures, Fair Value	1,912	1,905
Debentures, Common Stock Shares	1,784,300	779,294,000
Debentures 2009 Series [Member]
Debt Conversion [Line Items]
Debentures, Face Value	91	134
Debentures, Fair Value	116	151
Debentures, Common Stock Shares	110,140	61,563,000
Debentures 2011 Series [Member]
Debt Conversion [Line Items]
Debentures, Face Value	1,614	852
Debentures, Fair Value	851	854
Debentures, Common Stock Shares	810,547	348,437,000
Debentures 2012 Series [Member]
Debt Conversion [Line Items]
Debentures, Face Value	210	972
Debentures, Fair Value	1,022	1,392
Debentures, Common Stock Shares	963,159	568,305,000
Debentures 2013 Series [Member]
Debt Conversion [Line Items]
Debentures, Face Value	29,211	34,211
Debentures, Fair Value	$ 28,103	$ 31,407
Debentures, Common Stock Shares	26,490,906	12,826,301,000