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Stock Compensation Plans (Tables)
9 Months Ended
Jun. 30, 2018
Share-based Compensation [Abstract]  
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award
for the nine months ended June 30, 2018 and 2017 is summarized as follows:
 
Nine Months Ended
June 30, 2018
 
Nine Months Ended
June 30, 2017
 
 Number of Shares

 
Weighted
Average
Exercise
Price

 
 Number of Shares

 
Weighted
Average
Exercise
Price

Options outstanding, beginning of period
380,120

 
$
13.23

 
373,130

 
$
9.82

Exercised
(34,850
)
 
8.39

 
(39,810
)
 
6.65

Forfeited
(5,150
)
 
13.39

 
(4,950
)
 
6.28

Options outstanding, end of period
340,120

 
$
13.73

 
328,370

 
$
10.26

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range
Additional information regarding options outstanding at June 30, 2018 is as follows:
 
 
Options Outstanding
 
Options Exercisable
Range of
Exercise
Prices ($)
 
Number

 
Weighted
Average
Exercise
Price

 
Weighted
Average
Remaining
Contractual
Life (Years)
 
Number

 
Weighted
Average
Exercise
Price

 
Weighted
Average
Remaining
Contractual
Life (Years)
$ 4.01 - 4.55
 
6,000

 
$
4.28

 
2.4
 
6,000

 
$
4.28

 
2.4
   5.86 - 6.00
 
30,300

 
5.96

 
4.3
 
30,300

 
5.96

 
4.3
   9.00
 
72,800

 
9.00

 
5.3
 
54,600

 
9.00

 
5.3
 10.26 - 10.71
 
121,320

 
10.58

 
6.8
 
57,470

 
10.54

 
6.7
 15.67
 
52,200

 
15.67

 
8.3
 
8,600

 
15.67

 
8.3
 29.69
 
57,500

 
29.69

 
9.3
 

 
N/A

 
NA
 
 
340,120

 
$
13.73

 
6.8
 
156,970

 
$
9.16

 
5.7