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Earnings Per Share (Tables)
3 Months Ended
May 31, 2019
Earnings Per Share - Denominator For Calculation Of Diluted Earnings Per Share  
Computation of basic and diluted earnings per share
   Three Months Ended May 31, 
   2019   2018 
         
Numerator for basic and diluted earnings per share  $25,213   $21,430 
           
Denominator for basic earnings per share - weighted average   15,268,071    14,987,613 
           
Effects of dilutive securities:          
Stock options for employees, directors and outside consultants   89,224    100,899 
Denominator for diluted earnings per share   15,357,295    15,088,512 
           
Basic Earnings Per Share  $0.00   $0.00 
           
Diluted Earnings Per Share  $0.00   $0.00