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Financing (Details Textual) (USD $)
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Debt Conversion [Line Items]    
Name Of Accredited Investor YA Global  
Ownership Stock Issued On Conversation Of Debt Maximum 9.99%  
Debt Instrument, Interest Rate, Stated Percentage 9.50%  
Debt Instrument, Maturity Date Jul. 29, 2008  
Embedded Derivative, Gain (Loss) On Embedded Derivative, Net $ 137,000 $ 1,943,000
Unrealized Gain (Loss) On Hybrid Instrument, Net (545,000) 24,487,000
Embedded Derivative Financial Instruments [Member]
   
Debt Conversion [Line Items]    
Fair Value Assumptions, Expected Volatility Rate 187.00%  
Fair Value Assumptions Risk Free Interest Rate Minimum 8.00%  
Fair Value Assumptions Equivalent Credit Risk Adjusted Rate 13.00%  
Fair Value Assumptions, Expected Term 1 year 4 months 2 days  
Hybrid Instrument [Member]
   
Debt Conversion [Line Items]    
Fair Value Assumptions, Expected Volatility Rate 187.00%  
Fair Value Inputs, Entity Credit Risk 13.00%  
Unrealized Gain (Loss) On Hybrid Instrument, Net 217,400,000  
Series C Convertible Preferred Stock [Member]
   
Debt Conversion [Line Items]    
Embedded Derivative, Gain (Loss) On Embedded Derivative, Net 128,000 1,798,000
Series C Convertible Preferred Stock [Member] | Embedded Derivative Financial Instruments [Member]
   
Debt Conversion [Line Items]    
Embedded Derivative, Gain (Loss) On Embedded Derivative, Net 23,300,000  
Series D Convertible Preferred Stock [Member]
   
Debt Conversion [Line Items]    
Embedded Derivative, Gain (Loss) On Embedded Derivative, Net 9,000 129,000
Series D Convertible Preferred Stock [Member] | Embedded Derivative Financial Instruments [Member]
   
Debt Conversion [Line Items]    
Embedded Derivative, Gain (Loss) On Embedded Derivative, Net 23,300,000  
Maximum [Member] | Hybrid Instrument [Member]
   
Debt Conversion [Line Items]    
Antidilution Adjusted Conversion Price Maximum $ 0.00019  
Minimum [Member] | Hybrid Instrument [Member]
   
Debt Conversion [Line Items]    
Antidilution Adjusted Conversion Price Minimum $ 0.00018  
Debenture [Member] | Embedded Derivative Financial Instruments [Member]
   
Debt Conversion [Line Items]    
Embedded Derivative, Gain (Loss) On Embedded Derivative, Net 23,300,000  
Warrant [Member]
   
Debt Conversion [Line Items]    
Fair Value Assumptions Equivalent Credit Risk Adjusted Rate 7.60%  
Remaining Warrants By Investors 20,000  
Warrants Exercise Price $ 0.0001  
Warrant [Member] | Maximum [Member]
   
Debt Conversion [Line Items]    
Fair Value Assumptions, Expected Volatility Rate 194.00%  
Fair Value Assumptions Risk Free Interest Rate Maximum 1.04%  
Warrant [Member] | Minimum [Member]
   
Debt Conversion [Line Items]    
Fair Value Assumptions, Expected Volatility Rate 165.00%  
Fair Value Assumptions Risk Free Interest Rate Minimum 0.14%  
Bifurcated Embedded Derivative Instruments [Member] | Embedded Derivative Financial Instruments [Member]
   
Debt Conversion [Line Items]    
Debt Instrument, Convertible, Conversion Price $ 0.000194  
Monte Carlo [Member] | Hybrid Instrument [Member]
   
Debt Conversion [Line Items]    
Fair Value Assumptions, Expected Term 1 year 4 months 2 days  
Ya Global [Member] | Warrant [Member]
   
Debt Conversion [Line Items]    
Warrants Held By Investors   1,900,000,000
Warrants Cancelled By Investors   1,400,000,000
Remaining Warrants By Investors   500,000,000
Warrants Exercise Price   $ 0.0001
Decrease In Fair Value Of Warrants   $ 1,600,000