Financing (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified			6 Months Ended
	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2014 Debenture Issuance In 2006 [Member]	Jun. 30, 2014 Debenture Issuance One In 2007 [Member]	Jun. 30, 2014 Debenture Issuance Two In 2007 [Member]	Jun. 30, 2014 Debenture Issuance One In 2008 [Member]	Jun. 30, 2014 Debenture Issuance Two In 2008 [Member]	Jun. 30, 2014 Debenture Issuance 2009 [Member]	Jun. 30, 2014 Debenture Issuance 2011 [Member]	Jun. 30, 2014 Debenture Issuance In 2012 [Member]	Jun. 30, 2014 Debenture Issuance One In 2013 [Member]	Jun. 30, 2014 Debenture Issuance Two In 2013 [Member]
Debt Conversion [Line Items]
Debt Instrument, Face Amount	$ 35,924	$ 41,017	$ 1,962	$ 547	$ 272	$ 1,187	$ 830	$ 91	$ 1,614	$ 210	$ 22,084	$ 7,127
Interest Rate			9.50%	9.50%	0.00%	9.50%	0.00%	9.50%	9.50%	0.00%	9.50%	0.00%
Fixed Price			$ 2.00	$ 2.00	$ 2.00	$ 2.00	$ 2.00	$ 2.00	$ 2.00	$ 2.00	$ 2.00	$ 2.00
Conversion Price - Lower of Fixed Price or Percentage of VWAP for Look-back Period, Anti-Dilution Adjusted Price			$ 0.001235	$ 0.001235	$ 0.001170	$ 0.001235	$ 0.001170	$ 0.001235	$ 0.001235	$ 0.001170	$ 0.001235	$ 0.001170
Conversion Price - Lower of Fixed Price or Percentage of VWAP for Look-back Period, Anti-Dilution Adjusted Price, Percentage			90.00%	90.00%	95.00%	90.00%	95.00%	90.00%	90.00%	95.00%	90.00%	95.00%
Conversion Price - Lower of Fixed Price or Percentage of VWAP for Look-back Period, Look-back Period			125 days	125 days	125 days	125 days	125 days	125 days	125 days	125 days	125 days	125 days