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Net Income Per Common Share
3 Months Ended
Dec. 31, 2012
Net Income Per Common Share
(4)  Net Income Per Common Share
 
Basic income per common share is based on the weighted average number of common shares outstanding during the period.  Diluted income per common share includes the dilutive effect of potential common shares outstanding.  The following table sets forth the reconciliation of weighted average shares outstanding and diluted weighted average shares outstanding:
 
   
Six months ended
December 31,
   
Three months ended
December 31,
 
   
2012
   
2011
   
2012
   
2011
 
                         
Weighted average shares outstanding
    26,882       26,520       26,959       26,565  
Dilutive effect of stock options and restricted stock awards and units
      390         166       357       172  
Diluted weighted average shares outstanding
    27,272       26,686       27,316       26,737  
 
There were 576 and 1,732 common equivalent shares outstanding as of December 31, 2012 and 2011, respectively, that were not included in the calculation of diluted income per common share for the six months ended December 31, 2012 and 2011, respectively, because their effect would have been anti-dilutive. There were 565 and 1,685 common equivalent shares outstanding as of December 31, 2012 and 2011, respectively, that were not included in the calculation of diluted income per common share for the three months ended December 31, 2012 and 2011, respectively, because their effect would have been anti-dilutive.