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Earnings Per Share - The denominator for the calculation of diluted earnings per share (Details) - USD ($)
12 Months Ended
Feb. 28, 2017
Feb. 29, 2016
Earnings Per Share Tables    
Numerator for basic and diluted earnings per share $ 95,706 $ 547,729
Denominator for basic earnings per share - weighted average 14,961,076 14,943,018
Effects of dilutive securities:    
Stock options for employees, directors and outside consultants 57,206 86,583
Denominator for diluted earnings per share 15,018,282 15,029,601
Basic Earnings Per Share - Weighted Average $ 0.01 $ 0.04
Diluted Earnings Per Share - Weighted Average $ 0.01 $ 0.04