Stock Compensation Plans: Disclosure of Share-based Compensation Arrangements by Share-based Payment Award (Details) - $ / shares |
9 Months Ended | |
|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
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| Shares: | ||
| Options outstanding, beginning of period (shares) | 215,530 | 306,240 |
| Exercised (shares) | (61,680) | (41,960) |
| Forfeited (shares) | (1,800) | (11,300) |
| Options outstanding, end of period (shares) | 152,050 | 252,980 |
| Weighted Average Exercise Price (in dollars per share): | ||
| Options outstanding, beginning of period (dollars per share) | $ 26.22 | $ 25.21 |
| Exercised (dollars per share) | 25.84 | 19.47 |
| Forfeited (dollars per share) | 27.68 | 28.41 |
| Options outstanding, end of period (dollars per share) | $ 26.35 | $ 26.02 |
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- Definition The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Number of options outstanding, including both vested and non-vested options. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition Weighted average price at which option holders acquired shares when converting their stock options into shares. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Number of share options (or share units) exercised during the current period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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