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Earnings Per Share (Tables)
 3 Months Ended
Jun. 30, 2013
Earnings Per Share [Abstract]  
Schedule of computation of basic and diluted earnings per share
     Three months ended
June 30,		  
     2013      2012  

Numerator for earnings per share – net income

    $ 5,700,493       $ 5,407,456   
  

 

 

     

 

 

  

Denominator:

      

Denominator for basic earnings per share – weighted average shares

      12,065,012         11,940,200   

Effect of dilutive securities:

      

Stock options and other share awards

      222,480         238,640   
  

 

 

     

 

 

  

Denominator for diluted earnings per share

      12,287,492         12,178,840   
  

 

 

     

 

 

  

Earnings per share:

      

Basic

    $ 0.47       $ 0.45   
  

 

 

     

 

 

  

Diluted

    $ 0.46       $ 0.44