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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 250
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- Definition

Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to deduction for dividend paid to employee stock ownership plan.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Amount of reported income tax expense (benefit) in excess of (less than) expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to nondeductible expense for award under share-based payment arrangement. Includes, but is not limited to, expense determined to be nondeductible upon grant or after for award under share-based payment arrangement.

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Federal Income Taxes: Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2021
Income Tax Disclosure [Abstract]
Expected federal income tax provision at statutory rate									$ 7,139	$ 6,208	$ 7,230
BOLI income									(148)	(129)	(125)
Dividends on Employee Stock Ownership Plan ("ESOP") stock									(71)	(70)	(88)
Stock options tax effect									(66)	(34)	(167)
Other, net									22	(13)	(5)
Provision for income taxes	$ 1,624	$ 1,666	$ 1,705	$ 1,881	$ 1,785	$ 1,472	$ 1,316	$ 1,389	$ 6,876	$ 5,962	$ 6,845