Financing (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014
Debt Conversion [Line Items]
Debt Instrument, Face Amount	$ 41,017
Debenture Issuance 2006 [Member]
Debt Conversion [Line Items]
Debt Instrument, Face Amount	1,962
Interest Rate	9.50%
Fixed Price	$ 2.00
Conversion Price - Lower of Fixed Price or Percentage of VWAP for Look-back Period, Anti-Dilution Adjusted Price	$ 0.00018
Conversion Price - Lower of Fixed Price or Percentage of VWAP for Look-back Period, Anti-Dilution Adjusted Price, Percentage	90.00%
Conversion Price - Lower of Fixed Price or Percentage of VWAP for Look-back Period, Look-back Period	125 days
Debenture Issuance One In 2007 [Member]
Debt Conversion [Line Items]
Debt Instrument, Face Amount	567
Interest Rate	9.50%
Fixed Price	$ 2.00
Conversion Price - Lower of Fixed Price or Percentage of VWAP for Look-back Period, Anti-Dilution Adjusted Price	$ 0.00018
Conversion Price - Lower of Fixed Price or Percentage of VWAP for Look-back Period, Anti-Dilution Adjusted Price, Percentage	90.00%
Conversion Price - Lower of Fixed Price or Percentage of VWAP for Look-back Period, Look-back Period	125 days
Debenture Issuance Two In 2007 [Member]
Debt Conversion [Line Items]
Debt Instrument, Face Amount	272
Interest Rate	0.00%
Fixed Price	$ 2.00
Conversion Price - Lower of Fixed Price or Percentage of VWAP for Look-back Period, Anti-Dilution Adjusted Price	$ 0.00019
Conversion Price - Lower of Fixed Price or Percentage of VWAP for Look-back Period, Anti-Dilution Adjusted Price, Percentage	95.00%
Conversion Price - Lower of Fixed Price or Percentage of VWAP for Look-back Period, Look-back Period	125 days
Debenture Issuance One In 2008 [Member]
Debt Conversion [Line Items]
Debt Instrument, Face Amount	1,217
Interest Rate	9.50%
Fixed Price	$ 2.00
Conversion Price - Lower of Fixed Price or Percentage of VWAP for Look-back Period, Anti-Dilution Adjusted Price	$ 0.00018
Conversion Price - Lower of Fixed Price or Percentage of VWAP for Look-back Period, Anti-Dilution Adjusted Price, Percentage	90.00%
Conversion Price - Lower of Fixed Price or Percentage of VWAP for Look-back Period, Look-back Period	125 days
Debenture Issuance Two In 2008 [Member]
Debt Conversion [Line Items]
Debt Instrument, Face Amount	830
Interest Rate	0.00%
Fixed Price	$ 2.00
Conversion Price - Lower of Fixed Price or Percentage of VWAP for Look-back Period, Anti-Dilution Adjusted Price	$ 0.00019
Conversion Price - Lower of Fixed Price or Percentage of VWAP for Look-back Period, Anti-Dilution Adjusted Price, Percentage	95.00%
Conversion Price - Lower of Fixed Price or Percentage of VWAP for Look-back Period, Look-back Period	125 days
Debenture Issuance 2009 [Member]
Debt Conversion [Line Items]
Debt Instrument, Face Amount	134
Interest Rate	9.50%
Fixed Price	$ 2.00
Conversion Price - Lower of Fixed Price or Percentage of VWAP for Look-back Period, Anti-Dilution Adjusted Price	$ 0.00018
Conversion Price - Lower of Fixed Price or Percentage of VWAP for Look-back Period, Anti-Dilution Adjusted Price, Percentage	90.00%
Conversion Price - Lower of Fixed Price or Percentage of VWAP for Look-back Period, Look-back Period	125 days
Debenture Issuance 2011 [Member]
Debt Conversion [Line Items]
Debt Instrument, Face Amount	852
Interest Rate	9.50%
Fixed Price	$ 2.00
Conversion Price - Lower of Fixed Price or Percentage of VWAP for Look-back Period, Anti-Dilution Adjusted Price	$ 0.00018
Conversion Price - Lower of Fixed Price or Percentage of VWAP for Look-back Period, Anti-Dilution Adjusted Price, Percentage	90.00%
Conversion Price - Lower of Fixed Price or Percentage of VWAP for Look-back Period, Look-back Period	125 days
Debenture Issuance One In 2012 [Member]
Debt Conversion [Line Items]
Debt Instrument, Face Amount	762
Interest Rate	9.50%
Fixed Price	$ 2.00
Conversion Price - Lower of Fixed Price or Percentage of VWAP for Look-back Period, Anti-Dilution Adjusted Price	$ 0.00018
Conversion Price - Lower of Fixed Price or Percentage of VWAP for Look-back Period, Anti-Dilution Adjusted Price, Percentage	90.00%
Conversion Price - Lower of Fixed Price or Percentage of VWAP for Look-back Period, Look-back Period	125 days
Debenture Issuance Two In 2012 [Member]
Debt Conversion [Line Items]
Debt Instrument, Face Amount	210
Interest Rate	0.00%
Fixed Price	$ 2.00
Conversion Price - Lower of Fixed Price or Percentage of VWAP for Look-back Period, Anti-Dilution Adjusted Price	$ 0.00019
Conversion Price - Lower of Fixed Price or Percentage of VWAP for Look-back Period, Anti-Dilution Adjusted Price, Percentage	95.00%
Conversion Price - Lower of Fixed Price or Percentage of VWAP for Look-back Period, Look-back Period	125 days
Debenture Issuance One In 2013 [Member]
Debt Conversion [Line Items]
Debt Instrument, Face Amount	22,084
Interest Rate	9.50%
Fixed Price	$ 2.00
Conversion Price - Lower of Fixed Price or Percentage of VWAP for Look-back Period, Anti-Dilution Adjusted Price	$ 0.00018
Conversion Price - Lower of Fixed Price or Percentage of VWAP for Look-back Period, Anti-Dilution Adjusted Price, Percentage	90.00%
Conversion Price - Lower of Fixed Price or Percentage of VWAP for Look-back Period, Look-back Period	125 days
Debenture Issuance Two In 2013 [Member]
Debt Conversion [Line Items]
Debt Instrument, Face Amount	$ 12,127
Interest Rate	0.00%
Fixed Price	$ 2.00
Conversion Price - Lower of Fixed Price or Percentage of VWAP for Look-back Period, Anti-Dilution Adjusted Price	$ 0.00019
Conversion Price - Lower of Fixed Price or Percentage of VWAP for Look-back Period, Anti-Dilution Adjusted Price, Percentage	95.00%
Conversion Price - Lower of Fixed Price or Percentage of VWAP for Look-back Period, Look-back Period	125 days