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Loans Receivable and Allowance for Loan Losses: Financing Receivable Credit Quality Indicators (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Sep. 30, 2022
--- | --- | ---
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | $ 1,323,364 | $ 1,150,450
Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 1,299,220 | 1,132,403
Watch |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 17,758 | 10,423
Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 0 | 237
Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 6,386 | 7,387
Mortgage loans, one-to-four family |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 253,227 | 176,116
Mortgage loans, one-to-four family | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 252,859 | 175,687
Mortgage loans, one-to-four family | Watch |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 0 | 38
Mortgage loans, one-to-four family | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 0 | 0
Mortgage loans, one-to-four family | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 368 | 391
Mortgage loans, multi-family |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 127,176 | 95,025
Mortgage loans, multi-family | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 127,176 | 95,025
Mortgage loans, multi-family | Watch |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 0 | 0
Mortgage loans, multi-family | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 0 | 0
Mortgage loans, multi-family | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 0 | 0
Mortgage loans, commercial |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 568,265 | 536,650
Mortgage loans, commercial | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 551,669 | 522,741
Mortgage loans, commercial | Watch |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 11,143 | 7,940
Mortgage loans, commercial | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 0 | 237
Mortgage loans, commercial | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 5,453 | 5,732
Mortgage loans, construction - custom and owner/builder |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 73,239 | 67,091
Mortgage loans, construction - custom and owner/builder | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 68,181 | 65,249
Mortgage loans, construction - custom and owner/builder | Watch |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 5,058 | 1,842
Mortgage loans, construction - custom and owner/builder | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 0 | 0
Mortgage loans, construction - custom and owner/builder | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 0 | 0
Mortgage loans, construction - speculative one-to-four family |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 9,361 | 8,364
Mortgage loans, construction - speculative one-to-four family | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 9,361 | 8,364
Mortgage loans, construction - speculative one-to-four family | Watch |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 0 | 0
Mortgage loans, construction - speculative one-to-four family | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 0 | 0
Mortgage loans, construction - speculative one-to-four family | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 0 | 0
Mortgage loans, construction - commercial |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 26,030 | 29,059
Mortgage loans, construction - commercial | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 25,063 | 29,059
Mortgage loans, construction - commercial | Watch |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 967 | 0
Mortgage loans, construction - commercial | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 0 | 0
Mortgage loans, construction - commercial | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 0 | 0
Mortgage loans, construction - multi-family |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 45,890 | 34,354
Mortgage loans, construction - multi-family | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 45,890 | 34,354
Mortgage loans, construction - multi-family | Watch |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 0 | 0
Mortgage loans, construction - multi-family | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 0 | 0
Mortgage loans, construction - multi-family | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 0 | 0
Mortgage loans - construction - land development |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 16,129 | 13,582
Mortgage loans - construction - land development | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 16,129 | 13,557
Mortgage loans - construction - land development | Watch |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 0 | 0
Mortgage loans - construction - land development | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 0 | 0
Mortgage loans - construction - land development | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 0 | 25
Mortgage loans, land |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 26,726 | 26,854
Mortgage loans, land | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 26,226 | 25,882
Mortgage loans, land | Watch |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 500 | 522
Mortgage loans, land | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 0 | 0
Mortgage loans, land | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 0 | 450
Consumer loans, home equity and second mortgage |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 38,281 | 35,187
Consumer loans, home equity and second mortgage | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 37,982 | 34,709
Consumer loans, home equity and second mortgage | Watch |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 34 | 19
Consumer loans, home equity and second mortgage | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 0 | 0
Consumer loans, home equity and second mortgage | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 265 | 459
Consumer loans, other |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 2,772 | 2,128
Consumer loans, other | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 2,716 | 2,063
Consumer loans, other | Watch |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 56 | 62
Consumer loans, other | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 0 | 0
Consumer loans, other | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 0 | 3
Commercial business loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 135,802 | 125,039
Commercial business loans | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 135,502 | 124,712
Commercial business loans | Watch |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 0 | 0
Commercial business loans | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 0 | 0
Commercial business loans | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 300 | 327
SBA PPP Loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 466 | 1,001
SBA PPP Loans | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 466 | 1,001
SBA PPP Loans | Watch |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 0 | 0
SBA PPP Loans | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | 0 | 0
SBA PPP Loans | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans receivable | $ 0 | $ 0

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