Federal Income Taxes: Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Sep. 30, 2022
Deferred Tax Assets
Allowance for loan losses	$ 3,322	$ 2,878
Allowance for OREO losses	5	5
OTTI credit impairment on investment securities	50	62
Accrued interest on loans	58	63
Deferred compensation and bonuses	217	260
Reserve for loan commitments	70	64
Operating lease liabilities	392	434
Net unrealized losses on investment securities and investments in equity securities	288	190
Other	85	66
Total deferred tax assets	4,487	4,022
Deferred Tax Liabilities
Goodwill	1,187	1,187
Loan servicing rights	446	635
Depreciation	906	757
Loan fees/costs	983	771
Prepaid expenses	172	175
Purchase accounting adjustment	159	208
Operating lease ROU assets	372	416
Total deferred tax liabilities	4,225	4,149
Deferred Tax Assets, Net	$ 262
Net deferred tax assets (liabilities)		$ (127)