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Stock Compensation Plans (Tables)
6 Months Ended
Mar. 31, 2020
Share-based Payment Arrangement, Noncash Expense [Abstract]  
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award
Stock option activity for the six months ended March 31, 2020 and 2019 is summarized as follows:
 
Six Months Ended
March 31, 2020
 
Six Months Ended
March 31, 2019
 
 Number of Shares

 
Weighted
Average
Exercise
Price

 
 Number of Shares

 
Weighted
Average
Exercise
Price

Options outstanding, beginning of period
378,304

 
$
18.15

 
380,820

 
$
16.03

Exercised
(36,375
)
 
10.30

 
(30,416
)
 
9.31

Granted
1,000

 
26.50

 

 

Forfeited
(8,650
)
 
24.84

 
(3,900
)
 
18.63

Options outstanding, end of period
334,279

 
$
18.86

 
346,504

 
$
16.59

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range
Additional information regarding options outstanding at March 31, 2020 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
 
1,000

 
$
4.01

 
1.7
 
1,000

 
$
4.01

 
1.7
   5.86 - 6.00
 
19,100

 
5.97

 
2.6
 
19,100

 
5.97

 
2.6
   9.00
 
37,425

 
9.00

 
3.6
 
37,425

 
9.00

 
3.6
 10.26 - 10.71
 
91,064

 
10.59

 
5.1
 
68,914

 
10.58

 
5.0
 15.67
 
42,800

 
15.67

 
6.5
 
23,000

 
15.67

 
6.5
 26.50 - 27.14
 
46,640

 
27.13

 
9.5
 

 
N/A

 
N/A
 29.69
 
53,200

 
29.69

 
7.5
 
21,400

 
29.69

 
7.5
 31.80
 
43,050

 
31.80

 
8.5
 
8,770

 
31.80

 
8.5
 
 
334,279

 
$
18.86

 
6.4
 
179,609

 
$
13.69

 
5.1