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Net Income Per Share (Tables)
9 Months Ended
Jun. 30, 2023
Earnings Per Share [Abstract]  
Basic and Diluted Net Income Per Share

The following table presents shares used in the calculation of basic and diluted net income per share:

 

Three Months Ended

 

 

Nine Months Ended

 

 

June 30,

 

 

June 30,

 

 

2022

 

 

2023

 

 

2022

 

 

2023

 

Weighted average common shares outstanding used in
   calculating basic net income per share

 

21,524,315

 

 

 

21,885,400

 

 

 

21,761,811

 

 

 

21,831,350

 

Effect of dilutive options and non-vested restricted stock
   awards

 

648,958

 

 

 

542,043

 

 

 

694,017

 

 

 

489,919

 

Weighted average common and common equivalent shares
   used in calculating diluted net income per share

 

22,173,273

 

 

 

22,427,443

 

 

 

22,455,828

 

 

 

22,321,269