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Earnings Per Share
 6 Months Ended
Mar. 31, 2019
Earnings Per Share [Abstract]  
Earnings Per Share
Earnings Per Share
 
Basic earnings per share is calculated by dividing income available to common shareholders by the weighted average number of common shares outstanding and restricted stock grants that vested or are likely to vest during the period. Diluted earnings per share is calculated by dividing income available to common shareholders by the weighted average number of basic common shares outstanding, adjusted to reflect potentially dilutive securities. Diluted earnings per share is calculated using the treasury stock method.

 
 
Three Months Ended
 
Six Months Ended
 
 
March 31,
 
March 31,
 
 
2019
 
2018
 
2019
 
2018
Numerator:
 
 
 
 
 
 
 
 
Net income (loss)
 
$
1,265

 
$
1,316

 
$
2,955

 
$
(1,535
)
Denominator:
 
 
 
 
 
 
 
 
Denominator for basic net income (loss) per share - weighted-average outstanding shares
 
12,036

 
11,889

 
11,999

 
11,863

Effect of dilutive securities:
 
 
 
 
 
 
 
 
Stock options and restricted stock
 
1,051

 
997

 
1,031

 
—

Denominator for diluted net income (loss) per share - weighted-average outstanding shares
 
13,087

 
12,886

 
13,030

 
11,863

 
 
 
 
 
 
 
 
 
Net income (loss) per share - basic
 
$
0.11

 
$
0.11

 
$
0.25

 
$
(0.13
)
Net income (loss) per share - diluted
 
$
0.10

 
$
0.10

 
$
0.23

 
$
(0.13
)