Annual report pursuant to Section 13 and 15(d)

14. Warrants (Tables)

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14. Warrants (Tables)
12 Months Ended
Dec. 31, 2013
Warrants Tables  
Common stock warrants

The following table summarizes information about common stock warrants outstanding at December 31, 2013:

 

Outstanding     Exercisable  

Exercise

Price

   

Number

Outstanding

    Weighted Average Remaining Contractual Life (years)    

Weighted Average

Exercise Price

   

Number

Exercisable

   

Weighted Average

Exercise Price

 
$ 3.30       11,364       2.36     $ 3.30       11,364     $ 3.30  
  1.25       13,950       1.75       1.25       13,950       1.25  
  1.00       24,000       2.82       1.00       24,000       1.00  
  0.75       4,811,021       4.48       0.75       4,811,021       0.75  
  0.50       1,570,750       4.74       0.50       1,570,750       0.50  
$ .50 - $3.30       6,431,085       4.58               6,431,085