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Net Income Per Share (Tables)
3 Months Ended
Dec. 31, 2019
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

 

 

 

December 31,

 

 

 

2018

 

 

2019

 

Weighted average common shares outstanding used in

   calculating basic income per share

 

 

22,779,567

 

 

 

21,453,914

 

Effect of dilutive options and non-vested restricted stock

   awards

 

 

621,118

 

 

 

436,151

 

Weighted average common and common equivalent shares

   used in calculating diluted income per share

 

 

23,400,685

 

 

 

21,890,065