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Earnings Per Share (Tables)
9 Months Ended
Nov. 30, 2015
Earnings Per Share Tables  
Computation of basic and diluted earnings per share
   Nine Months Ended
November 30,
   Three Months Ended
November 30,
 
   2015   2014   2015   2014 
                 
Denominator for basic earnings per share   14,941,150    14,713,893    14,946,274    14,718,162 
                     
Dilutive effect of stock options   99,123    228,244    97,599    239,908 
                     
Denominator for diluted earnings per share   15,040,273    14,942,137    15,043,873    14,958,070