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Stock Compensation Plans: Stock Options by Exercise Price (Details) - Stock Options | 12 Months Ended
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Sep. 30, 2020 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Options Outstanding, Number (in shares) | shares | 395,349
Options Outstanding, Weighted Average Exercise Price (in dollars per share) | $ 18.45
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 6 years 7 months 6 days
Options Exercisable, Number (in shares) | shares | 236,157
Options Exercisable, Weighted Average Exercise Price (in dollars per share) | $ 15.31
Options Exercisable, Weighted Average Remaining Contractual Life (Years) | 5 years 1 month 6 days
$ 4.01 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Options Outstanding, Number (in shares) | shares | 1,000
Options Outstanding, Weighted Average Exercise Price (in dollars per share) | $ 4.01
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 1 year 2 months 12 days
Options Exercisable, Number (in shares) | shares | 1,000
Options Exercisable, Weighted Average Exercise Price (in dollars per share) | $ 4.01
Options Exercisable, Weighted Average Remaining Contractual Life (Years) | 1 year 2 months 12 days
Exercise price range, lower range limit (in dollars per share) | $ 4.01
5.86 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Options Outstanding, Number (in shares) | shares | 19,100
Options Outstanding, Weighted Average Exercise Price (in dollars per share) | $ 5.97
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 2 years 1 month 6 days
Options Exercisable, Number (in shares) | shares | 19,100
Options Exercisable, Weighted Average Exercise Price (in dollars per share) | $ 5.97
Options Exercisable, Weighted Average Remaining Contractual Life (Years) | 2 years 1 month 6 days
Exercise price range, lower range limit (in dollars per share) | $ 5.86
Exercise price range, upper range limit (in dollars per share) | $ 6.00
9.00 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Options Outstanding, Number (in shares) | shares | 37,425
Options Outstanding, Weighted Average Exercise Price (in dollars per share) | $ 9.00
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 3 years 1 month 6 days
Options Exercisable, Number (in shares) | shares | 37,425
Options Exercisable, Weighted Average Exercise Price (in dollars per share) | $ 9.00
Options Exercisable, Weighted Average Remaining Contractual Life (Years) | 3 years 1 month 6 days
Exercise price range, lower range limit (in dollars per share) | $ 9.00
10.26 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Options Outstanding, Number (in shares) | shares | 89,064
Options Outstanding, Weighted Average Exercise Price (in dollars per share) | $ 10.59
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 4 years 7 months 6 days
Options Exercisable, Number (in shares) | shares | 89,064
Options Exercisable, Weighted Average Exercise Price (in dollars per share) | $ 10.59
Options Exercisable, Weighted Average Remaining Contractual Life (Years) | 4 years 7 months 6 days
Exercise price range, lower range limit (in dollars per share) | $ 10.26
Exercise price range, upper range limit (in dollars per share) | $ 10.71
15.67 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Options Outstanding, Number (in shares) | shares | 110,150
Options Outstanding, Weighted Average Exercise Price (in dollars per share) | $ 16.41
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 8 years 6 months
Options Exercisable, Number (in shares) | shares | 32,500
Options Exercisable, Weighted Average Exercise Price (in dollars per share) | $ 15.67
Options Exercisable, Weighted Average Remaining Contractual Life (Years) | 6 years
Exercise price range, lower range limit (in dollars per share) | $ 15.67
Exercise price range, upper range limit (in dollars per share) | $ 16.87
26.50 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Options Outstanding, Number (in shares) | shares | 45,240
Options Outstanding, Weighted Average Exercise Price (in dollars per share) | $ 27.13
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 9 years
Options Exercisable, Number (in shares) | shares | 8,848
Options Exercisable, Weighted Average Exercise Price (in dollars per share) | $ 27.14
Options Exercisable, Weighted Average Remaining Contractual Life (Years) | 9 years
Exercise price range, lower range limit (in dollars per share) | $ 26.50
Exercise price range, upper range limit (in dollars per share) | $ 27.14
29.69 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Options Outstanding, Number (in shares) | shares | 51,800
Options Outstanding, Weighted Average Exercise Price (in dollars per share) | $ 29.69
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 7 years
Options Exercisable, Number (in shares) | shares | 31,400
Options Exercisable, Weighted Average Exercise Price (in dollars per share) | $ 29.69
Options Exercisable, Weighted Average Remaining Contractual Life (Years) | 7 years
Exercise price range, lower range limit (in dollars per share) | $ 29.69
31.80 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Options Outstanding, Number (in shares) | shares | 41,570
Options Outstanding, Weighted Average Exercise Price (in dollars per share) | $ 31.80
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 8 years
Options Exercisable, Number (in shares) | shares | 16,820
Options Exercisable, Weighted Average Exercise Price (in dollars per share) | $ 31.80
Options Exercisable, Weighted Average Remaining Contractual Life (Years) | 8 years
Exercise price range, lower range limit (in dollars per share) | $ 31.80

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- Definition The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(iii) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Weighted average remaining contractual term of exercisable stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(2) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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