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Fair Value Measurements (Tables)
12 Months Ended
Dec. 31, 2012
Fair Value Measurements [Abstract]  
Fair value assumptions and methodology for assets and liabilities
   
For the year
 
   
ended
December 31,
2010
 
       
 Annual dividend yield
    -  
 Expected life (years)
    0.50 – 4.8  
 Risk-free interest rate
    0.18% - 1.90 %
 Expected volatility
    117% - 221 %
 
   
For the year
 
   
ended
December 31,
2011
 
       
 Annual dividend yield
    -  
 Expected life (years)
    0.08 – 3.0  
 Risk-free interest rate
    0.08% - 1.27 %
 Expected volatility
    110% - 263 %
Fair value of embedded conversion features and warrants
 
January 1, 2010
 
$
4,507
 
Ne Derivatives added in connection with issuance of debt and equity
 
 
5,236
 
Derivatives reclassified to equity in connection with repayment and conversion of debt
 
 
      (19,286)
 
Net increase in fair value
 
 
         16,261
 
December 31, 2010
 
$
6,718
 
 
  Ne Derivatives added in connection with issuance of debt and equity
 
 
4,762
 
Derivatives reclassified to equity in connection with repayment
           and conversion of debt
 
 
      (20,075)
 
Net increase in fair value
 
 
         8,595
 
December 31, 2011
 
$
-