Annual report pursuant to Section 13 and 15(d)

9. Stock Options and Warrants (Tables)

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9. Stock Options and Warrants (Tables)
12 Months Ended
Dec. 31, 2012
Stock Options And Warrants Tables  
Fair values of option awards granted

The fair values of option awards granted in 2012 and 2011 were estimated using the Black-Sholes option pricing model under the following assumptions:

 

    2012     2011  
                 
Risk free interest rate     0.62% - 2.31 %     1.65% – 2.30 %
Dividend yield     0 %     0 %
Expected term   5-10 years     5 years  
Expected volatility     62.8 – 67.9 %     61.7 – 61.9 %

Options issued under foregoing option plans

The status of the options issued under the foregoing option plans as of December 31, 2012, and changes during the years ended December 31, 2012 and 2011, were as follows:

 

    Options outstanding  
   

Number of

shares

    Weighted average price per share  
                 
Balance at December 31, 2010     1,119,000     $ 0.30  
Options granted     45,500       0.17  
Options exercised, expired or forfeited     161,500       0.20  
Balance at December 31, 2011     1,003,000       0.31  
Options granted     109,500       0.14  
Options exercised     5,000       0.07  
Options expired or forfeited     75,000       0.30  
Balance at December 31, 2012     1,032,500     $ 0.29  

Summary information about options

The following table summarizes information about options at December 31, 2012:

 

Options outstanding     Options exercisable  
Total shares     Weighted average exercise price     Weighted average remaining contractual life in years    

Aggregate intrinsic

value

    Total shares     Weighted average exercise price     Weighted average remaining contractual life in years    

Aggregate intrinsic

value

 
                                                             
  1,032,500     $ 0.29       4.32     $ 1,770       920,250     $ 0.31       3.73     $ 1,770  

Nonvested stock awards

Nonvested stock awards as of December 31, 2012 and changes during the year ended December 31, 2012, were as follows:

 

    Nonvested  
   

Number of

shares

    Weighted average grant date fair value  
                 
Balance at December 31, 2011     60,000     $ 0.09  
Granted     109,500       0.08  
Vested     41,250       0.10  
Expired before vesting     16,000       0.08  
Balance at December 31, 2012     112,250       0.08