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Earnings Per Share (Tables)
 3 Months Ended
Dec. 31, 2018
Earnings Per Share [Abstract]  
Schedule of Diluted Earnings per Share
Diluted earnings per share is calculated using the treasury stock method.

 
 
Three Months Ended
 
 
December 31,
 
 
2018
 
2017
Numerator:
 
 
 
 
Net income (loss)
 
$
1,690

 
$
(2,851
)
Denominator:
 
 
 
 
Denominator for basic net income per share - weighted-average outstanding shares
 
11,963

 
11,837

Effect of dilutive securities:
 
 
 
 
Stock options and restricted stock
 
1,016

 
—

Denominator for diluted net income per share - weighted-average outstanding shares
 
12,979

 
11,837

 
 
 
 
 
Net income (loss) per share - basic
 
$
0.14

 
$
(0.24
)
Net income (loss) per share - diluted
 
$
0.13

 
$
(0.24
)