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Stock Compensation Plans (Tables)
9 Months Ended
Jun. 30, 2019
Share-based Payment Arrangement, Noncash Expense [Abstract]  
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award
Stock option activity for the nine months ended June 30, 2019 and 2018 is summarized as follows:
 
Nine Months Ended
June 30, 2019
 
Nine Months Ended
June 30, 2018
 
 Number of Shares

 
Weighted
Average
Exercise
Price

 
 Number of Shares

 
Weighted
Average
Exercise
Price

Options outstanding, beginning of period
380,820

 
$
16.03

 
380,120

 
$
13.23

Exercised
(37,756
)
 
9.00

 
(34,850
)
 
8.39

Forfeited
(3,900
)
 
18.63

 
(5,150
)
 
13.39

Options outstanding, end of period
339,164

 
$
16.79

 
340,120

 
$
13.73

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range
Additional information regarding options outstanding at June 30, 2019 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
 
2,500

 
$
4.33

 
1.2
 
2,500

 
$
4.33

 
1.2
   5.86 - 6.00
 
19,850

 
5.97

 
3.3
 
19,850

 
5.97

 
3.3
   9.00
 
52,775

 
9.00

 
4.3
 
52,775

 
9.00

 
4.3
 10.26 - 10.71
 
113,189

 
10.58

 
5.8
 
79,989

 
10.55

 
5.7
 15.67
 
48,800

 
15.67

 
7.3
 
17,000

 
15.67

 
7.3
 29.69
 
56,100

 
29.69

 
8.3
 
11,300

 
29.69

 
8.3
 31.80
 
45,950

 
31.80

 
9.3
 

 
N/A

 
N/A
 
 
339,164

 
$
16.79

 
6.5
 
183,414

 
$
11.18

 
5.3