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EARNINGS PER SHARE (Tables)
 6 Months Ended
Mar. 31, 2017
Earnings Per Share [Abstract]  
Computation of Basic and Diluted Earnings Per Share
The following table reconciles basic and diluted weighted average shares used in the computation of earnings per share (in thousands, except per share data):
 
Three months ended March 31,
 
Six months ended March 31,
 
2017
 
2016
 
2017
 
2016
Numerator:
 
 
 
 
 
 
 
Net income (loss)
$
(829
)
 
$
5,567

 
$
(1,128
)
 
$
5,108

Denominator:
 
 
 
 
 
 
 
Weighted average basic shares
11,445

 
11,369

 
11,441

 
11,382

Dilutive effect of restricted stock units
—

 
53

 
—

 
33

Weighted average diluted shares with assumed conversions
11,445

 
11,422

 
11,441

 
11,415

Net income (loss) per share:
 
 
 
 
 
 
 
Basic
$
(0.07
)
 
$
0.49

 
$
(0.10
)
 
$
0.45

Diluted
$
(0.07
)
 
$
0.49

 
$
(0.10
)
 
$
0.45