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EARNINGS PER SHARE
9 Months Ended
Dec. 31, 2011
EARNINGS PER SHARE [Abstract]  
EARNINGS PER SHARE
10. EARNINGS PER SHARE
 
Basic earnings per share is calculated by dividing net earnings available to common shareholders by the basic weighted average number of shares of common stock outstanding during each period. Diluted earnings per share is calculated by dividing net earnings available to common shareholders by the basic weighted average number of shares of common stock outstanding plus incremental shares issuable upon the assumed exercise of “in-the-money” stock options and other common stock equivalents during each period.

The following table provides a reconciliation of the numerators and denominators used to calculate basic and diluted net earnings per common share as disclosed on our unaudited condensed consolidated statements of operations for the three and nine months ended December 31, 2011 and December 31, 2010 (in thousands, except per share data).
 
   
Three Months Ended December 31,
  
Nine Months Ended December 31,
 
   
2011
  
2010
  
2011
  
2010
 
Net earnings available to common shareholders—basic and diluted
 $8,743  $7,549  $19,510  $20,171 
                  
Weighted average shares outstanding — basic
  7,819   8,252   8,092   8,171 
Effect of dilutive shares
  151   199   200   212 
                 
Weighted average shares outstanding — diluted
  7,970   8,451   8,292   8,383 
                  
Earnings per common share:
                
Basic
 $1.12  $0.91  $2.41  $2.47 
Diluted
 $1.10  $0.89  $2.35  $2.41 

All unexercised stock options were included in the computations of diluted earnings per share for the three and nine months ended December 31, 2011 and 2010.