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4. Earnings Per Share
9 Months Ended
Sep. 30, 2012
Earnings Per Share [Text Block]
4.           Earnings Per Share

The following table shows the weighted average number of shares used in computing earnings per share and the effect on weighted average number of shares of potential dilutive common stock.

   
Three Months Ended September 30,
 
   
2012
   
2011
 
             
Net income
  $ 625,395     $ 541,000  
Shares used in calculation of income per share:
               
     Basic
    4,809,469       4,628,632  
          Effect of dilutive options
    227,820       319,405  
     Diluted
    5,037,289       4,948,037  
Net income per share:
               
     Basic
  $ 0.13     $ 0.12  
     Diluted
  $ 0.12     $ 0.11  

   
Nine Months Ended September 30,
 
   
2012
   
2011
 
             
Net income
  $ 1,100,956     $ 821,205  
Shares used in calculation of income per share:
               
     Basic
    4,744,322       4,595,196  
          Effect of dilutive options
    228,726       334,798  
     Diluted
    4,973,048       4,929,994  
Net income per share:
               
     Basic
  $ 0.23     $ 0.18  
     Diluted
  $ 0.22     $ 0.17