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Net Income Per Share (Tables)
3 Months Ended
Dec. 31, 2016
Earnings Per Share [Abstract]  
Basic and Diluted Net Income Per Share

The following is a reconciliation of the shares used in the denominator for calculating basic and diluted net income per share:

 

 

 

Three Months Ended

December 31,

 

 

 

2015

 

 

2016

 

Weighted average common shares outstanding used in

   calculating basic income per share

 

 

24,213,134

 

 

 

24,249,739

 

Effect of dilutive options and non-vested restricted stock

   awards

 

 

529,196

 

 

 

673,386

 

Weighted average common and common equivalent shares

   used in calculating diluted income per share

 

 

24,742,330

 

 

 

24,923,125