4. Earnings Per Share
 6 Months Ended
Jun. 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 June 30,
 
   
2012
   
2011
 
             
Net income (loss)
  $ 551,670     $ (21,372 )
Shares used in calculation of income per share:
               
     Basic
    4,717,654       4,579,951  
          Effect of dilutive options
    357,127       -  
     Diluted
    5,074,781       4,579,951  
Net income per share:
               
     Basic
  $ 0.12     $ (0.00 )
     Diluted
  $ 0.11     $ (0.00 )

   
Six Months Ended June 30,
 
      2012       2011  
                 
Net income
  $ 475,561     $ 280,205  
Shares used in calculation of income per share:
               
     Basic
    4,711,390       4,578,201  
          Effect of dilutive options
    357,127       426,308  
     Diluted
    5,068,517       5,004,509  
Net income per share:
               
     Basic
  $ 0.10     $ 0.06  
     Diluted
  $ 0.09     $ 0.06