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Earnings Per Share (Tables)
12 Months Ended
Feb. 28, 2019
Earnings Per Share - Denominator For Calculation Of Diluted Earnings Per Share  
Computation of basic and diluted earnings per share
   February 28, 
   2019   2018 
         
Numerator for basic and diluted earnings per share  $161,587   $368,207 
           
Denominator for basic earnings per share - weighted average   15,107,778    14,968,450 
           
Effects of dilutive securities:          
Stock options for employees, directors and outside consultants   111,135    126,673 
Denominator for diluted earnings per share   15,218,913    15,095,123 
           
Basic Earnings Per Share – Weighted Average  $0.01   $0.02 
           
Diluted Earnings Per Share – Weighted Average  $0.01   $0.02