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Net Income (Loss) Per Common Share - Additional Information (Details)
3 Months Ended 6 Months Ended
Aug. 31, 2020
shares
Aug. 31, 2019
shares
Aug. 31, 2020
shares
Aug. 31, 2019
shares
Net Income Per Common Share [Abstract]        
Reconciling Items to basic and diluted EPS     0  
Antidilutive securities excluded from computation of earnings per share, amount 15,666 657,015 593,632 642,280