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Warrants for Stock (Tables)
12 Months Ended
Dec. 31, 2012
Warrants For Stock Tables  
Stock Warrants

At December 31, 2012 and 2011 warrants outstanding for common stock of the Company were as follows:

 

    Number of Shares Underlying Warrants     Weighted Average Exercise Price  
Balance at January 1, 2012     603,145     $ 3.26  
Granted     2,044,591       0.52  
Exercised     (20,300)       0.25  
Cancelled     (3,150)       0.50  
Balance at December 31, 2012     2,624,286     $ 1.15  

 

    Number of Shares Underlying Warrants     Weighted Average Exercise Price  
Balance at January 1, 2011 (Restated for 1:50 stock split)     336,745     $ 5.40  
Granted     266,400       0.55  
Exercised     -       -  
Cancelled     -       -  
Balance at December 31, 2011     603,145     $ 3.26  
Information about stock warrants

The following table summarizes information about underlying outstanding warrants for common stock of the Company outstanding and exercisable as of December 31, 2012:

 

      Warrants Outstanding   Warrants Exercisable  

Range of

Exercise Prices

   

Number of Shares

Underlying Warrants

   

Weighted Average

Exercise Price

 

Weighted Average

Remaining Contractual Life (in years)

 

Number of Shares

Underlying Warrants

   

Weighted Average

Exercise Price

 
$ 12.50 – $17.50       125,245     $ 13.03     8.6     125,245     $ 13.03  
$ 0.25 - $2.50       2,499,041     $ 0.56     4.2     2,499,041     $ 0.56  
          2,624,286                   2,624,286          

 

The following table summarizes information about underlying outstanding warrants for common stock of the Company outstanding and exercisable as of December 31, 2011:

 

      Warrants Outstanding     Warrants Exercisable  

Range of

Exercise Prices

   

Number of Shares

Underlying Warrants

   

Weighted Average

Exercise Price

    Weighted Average Remaining Contractual Life (in years)    

Number of Shares

Underlying Warrants

   

Weighted Average

Exercise Price

 
$ 12.50 – $17.50       125,245     $ 13.03       9.6       125,245     $ 13.03  
$ 0.25 - $2.50       477,900     $  0.69       3.8       477,900     $  0.69  
          603,145                       603,145          
Fair value of each warrant
    2012     2011  
Risk free interest rates     .62% - 1.04 %     .81% - 2.40 %
Expected life   5 years     5 years  
Estimated volatility     514.9% - 577.0 %     673.3% - 693.6 %
Dividend yield     0 %     0 %