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Fair Value Measurements
 12 Months Ended
Dec. 31, 2011
Fair Value Disclosures [Abstract]  
Fair Value Disclosures [Text Block]
7.     Fair Value Measurements
 
Accounting guidance defines fair value, establishes a framework for measuring fair value, and expands disclosure requirements about fair value measurements. The accounting guidance does not mandate any new fair value measurements and is applicable to assets and liabilities that are required to be recorded at fair value under other accounting pronouncements.
 
The three levels of the fair value hierarchy are described as follows:
 
Level 1: Quoted prices (unadjusted) in active markets for identical assets and liabilities. We had no Level 1 assets or liabilities.
 
Level 2: Inputs other than Level 1 that are observable, either directly or indirectly. We had no Level 2 assets or liabilities.
 
Level 3: Unobservable inputs. We valued warrants and embedded conversion features that were without observable market values and the valuation required a high level of judgment to determine fair value (Level 3 inputs). The Company estimated the fair value of these warrants and embedded conversion features using the Black-Scholes option pricing model using the following assumptions:
 
   
 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%
 
The following table shows the classification of our liabilities that were subject to fair value measurements and the roll-forward of these liabilities for the years ended December 31, 2011 and 2010 (in thousands):
 
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
  
$
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