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Stock-Based Compensation (Tables)
 12 Months Ended
Sep. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of Activity Related to Performance Shares
The following is a summary of activity related to performance shares:
 
2017
 
2016
 
Number of
Shares
 
Weighted Average
Fair Value at Date
of Grant
 
Number of
Shares
 
Weighted Average
Fair Value at Date
of Grant
Outstanding at beginning of year
146

 
$
13.07

 
98

 
$
28.50

Restricted shares awarded
71

 
7.73

 
59

 
9.53

Restricted shares earned
(29
)
 
9.45

 
(20
)
 
29.59

Performance shares awarded
69

 
7.45

 
102

 
10.40

Performance shares earned
(10
)
 
9.50

 
—

 
—

Awards forfeited
(53
)
 
17.75

 
(93
)
 
20.58

Outstanding at end of year
194

 
$
8.57

 
146

 
$
13.07