Financing (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	9 Months Ended
	Sep. 30, 2013
Debt Conversion [Line Items]
Face Amount	$ 40,920
Debenture Issuance 2006 [Member]
Debt Conversion [Line Items]
Face Amount	2,263
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, Percentage	90.00%
Conversion Price - Lower of Fixed Price or Percentage of VWAP for Look-back Period, Look-back Period	125 days
Debenture Issuance 2007 [Member]
Debt Conversion [Line Items]
Face Amount	1,150
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, Percentage	90.00%
Conversion Price - Lower of Fixed Price or Percentage of VWAP for Look-back Period, Look-back Period	125 days
Debenture Issuance 2008 [Member]
Debt Conversion [Line Items]
Face Amount	1,216
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, Percentage	90.00%
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]
Face Amount	172
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, 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]
Face Amount	864
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, Percentage	90.00%
Conversion Price - Lower of Fixed Price or Percentage of VWAP for Look-back Period, Look-back Period	125 days
Debenture Issuance 2012 [Member]
Debt Conversion [Line Items]
Face Amount	612
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, Percentage	90.00%
Conversion Price - Lower of Fixed Price or Percentage of VWAP for Look-back Period, Look-back Period	125 days
Debenture Issuance 2013 One [Member]
Debt Conversion [Line Items]
Face Amount	22,344
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, Percentage	90.00%
Conversion Price - Lower of Fixed Price or Percentage of VWAP for Look-back Period, Look-back Period	125 days
Debenture Issuance 2013 Two [Member]
Debt Conversion [Line Items]
Face Amount	$ 12,299
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, Percentage	95.00%
Conversion Price - Lower of Fixed Price or Percentage of VWAP for Look-back Period, Look-back Period	125 days