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1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - Schedule of Diluted Earnings Per Share - USD ($)
3 Months Ended 12 Months Ended
Feb. 28, 2019
Nov. 30, 2018
Aug. 31, 2018
May 31, 2018
Nov. 30, 2017
Aug. 31, 2017
May 31, 2017
Feb. 28, 2017
Feb. 28, 2019
Feb. 28, 2018
Earnings per share:                    
Net earnings applicable to common shareholders (in Dollars)                 $ 6,678,400 $ 5,214,700
Shares:                    
Weighted average shares outstanding-basic                 8,189,149 8,175,996
Assumed exercise of options                 7,479 5,326
Weighted average shares outstanding-diluted                 8,196,628 8,181,322
Diluted earnings per share:                    
Basic (in Dollars per share) $ 0.08 $ 0.34 $ 0.18 $ 0.22 $ 0.26 $ 0.13 $ 0.15 $ 0.10 $ 0.82 $ 0.64
Diluted (in Dollars per share) $ 0.07 $ 0.34 $ 0.18 $ 0.22 $ 0.26 $ 0.13 $ 0.15 $ 0.10 $ 0.81 $ 0.64