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12. STOCK OPTIONS AND WARRANTS (Tables)
12 Months Ended
Dec. 31, 2013
Stock Options And Warrants  
Assumptions for options granted

We used the following assumptions for options granted in fiscal 2013 and 2012:

 

  2013 2012
Expected volatility 128.75 -134.02% 106.70%
Expected lives 5 -10 Years 3 -5.5 Years
Risk-free interest rate 0.02% 0.21%
Expected dividend yield None None
Option activity

Option activity for the years ended December 31, 2013 and 2012 under the 2008 and 2011 Plans is as follows:

 

      Number of Options     Weighted Average
Exercise Price
 
Outstanding at December 31, 2011       22,755,291     $ 0.31  
Granted       600,000       0.24  
Exercised              
Forfeited              
Expired       (305,429 )     0.33  
Outstanding at December 31, 2012       23,049,862     $ 0.31  
Exercisable at December 31, 2012       13,887,006     $ 0.29  
Weighted average grant date fair value             $ 0.17  
Granted       1,000,000       0.19  
Exercised              
Forfeited              
Expired              
Outstanding at December 31, 2013       24,049,862     $ 0.30  
Exercisable at December 31, 2013       14,555,583     $ 0.29  
Weighted average grant date fair value             $ 0.16  
Stock options outstanding

The following table summarizes information about employee stock options outstanding at December 31, 2013:

 

Options Outstanding   Options Exercisable
Range of Exercise Price  

Number Outstanding at

December 31, 2013

  Weighted Average Remaining Contractual Life   Weighted Average Exercise Price   Aggregate Intrinsic Value  

Number

Exercisable at

December 31, 2013

  Weighted Average Exercise Price   Aggregate Intrinsic Value
$ 0.165-1.31   24,049,862   6.85 Years   $ 0.30   $   14,555,583   $ 0.29   $
      24,049,862   6.85 Years   $ 0.30   $   14,555,583   $ 0.29   $
Assumptions for Warrants

2013

 

The assumptions used in the valuation of these warrants include:

 

Assumptions  
Expected term 5 yrs
Expected Volatility 30.96%
Risk free rate 0.14%
Dividend Yield 0.00%

 

2012

 

  The assumptions used in the valuation of these warrants include:

 

Assumptions  
Expected term 5 yrs
Expected Volatility 105.82%
Risk free rate 0.214%
Dividend Yield 0.00%

 

Warrant activity

Warrant activity for the years ended December 31, 2013 and 2012 are as follows:

 

      Number of Warrants     Weighted Average
Exercise Price
 
Outstanding at December 31, 2011       10,537,003     $ 0.46  
Granted       278,966       0.28  
Exercised              
Forfeited              
Expired       (3,009,814 )     0.50  
Outstanding at December 31, 2012       7,806,155     $ 0.44  
Exercisable at December 31, 2012       7,806,155     $ 0.44  
Weighted average grant date fair value             $ 0.15  
Granted       7,095,734       0.43  
Exercised              
Forfeited              
Expired       (5,050,349 )     0.52  
Outstanding at December 31, 2013       9,851,540     $ 0.23  
Exercisable at December 31, 2013       9,851,540     $ 0.23  
Weighted average grant date fair value             $ 0.20