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Net Income Per Common Share - Additional Information (Details) - shares
3 Months Ended 9 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Mar. 31, 2020
Mar. 31, 2019
Stock Options        
Antidilutive Securities Excluded From Computation Of Earnings Per Share        
Antidilutive securities excluded from computation of earnings per share, share amount 663,821 302,118 615,649 222,951