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Loans Receivable And Allowance For Loan Losses: Schedule of Loans receivable and Loans held for sale (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Sep. 30, 2022
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Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total loans receivable | $ 1,328,903 | $ 1,253,618 |
Undisbursed portion of construction loans in process | 99,253 | 103,168 |
Deferred loan origination fees, net | 4,759 | 4,321 |
Allowance for loan losses | 14,698 | 13,703 |
Less: Loans in process, Deferred fees and Allowance for loan losses | 118,710 | 121,192 |
Loans receivable, net | $ 1,210,193 | $ 1,132,426 | [1]
Ratio of loan category to total loans receivable (percent) | 100.00% | 100.00% |
Mortgage loans excluded | $ 200 | $ 748 |
Total mortgage loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Mortgage loans | $ 1,159,846 | $ 1,090,263 |
Ratio of loan category to total loans receivable (percent) | 87.30% | 86.90% |
Mortgage loans, one-to-four family |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Mortgage loans | $ 216,639 | $ 176,116 |
Ratio of loan category to total loans receivable (percent) | 16.30% | 14.10% |
Mortgage loans, multi-family |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Mortgage loans | $ 103,870 | $ 95,025 |
Ratio of loan category to total loans receivable (percent) | 7.80% | 7.60% |
Mortgage loans, commercial |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Mortgage loans | $ 547,876 | $ 536,650 |
Ratio of loan category to total loans receivable (percent) | 41.20% | 42.80% |
Mortgage loans, construction - custom and owner/builder |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Mortgage loans | $ 124,071 | $ 119,240 |
Ratio of loan category to total loans receivable (percent) | 9.40% | 9.50% |
Mortgage loans, construction - speculative one-to-four family |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Mortgage loans | $ 11,343 | $ 12,254 |
Ratio of loan category to total loans receivable (percent) | 0.90% | 1.00% |
Mortgage loans, construction – commercial |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Mortgage loans | $ 31,458 | $ 40,364 |
Ratio of loan category to total loans receivable (percent) | 2.40% | 3.20% |
Mortgage loans, construction - Multi-family |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Mortgage loans | $ 83,051 | $ 64,480 |
Ratio of loan category to total loans receivable (percent) | 6.20% | 5.10% |
Mortgage loans, construction - Land development |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Mortgage loans | $ 17,018 | $ 19,280 |
Ratio of loan category to total loans receivable (percent) | 1.30% | 1.50% |
Mortgage loans, land |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Mortgage loans | $ 24,520 | $ 26,854 |
Ratio of loan category to total loans receivable (percent) | 1.80% | 2.10% |
Total consumer loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Consumer loans | $ 39,179 | $ 37,315 |
Ratio of loan category to total loans receivable (percent) | 3.00% | 3.00% |
Consumer loans, home equity and second mortgage |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Consumer loans | $ 36,896 | $ 35,187 |
Ratio of loan category to total loans receivable (percent) | 2.80% | 2.80% |
Consumer loans, other |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Consumer loans | $ 2,283 | $ 2,128 |
Ratio of loan category to total loans receivable (percent) | 0.20% | 0.20% |
Commercial business loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Commercial business loans | $ 129,306 | $ 125,039 |
Ratio of loan category to total loans receivable (percent) | 9.70% | 10.00% |
SBA PPP Loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Commercial business loans | $ 572 | $ 1,001 |
Ratio of loan category to total loans receivable (percent) | 0.00% | 0.10% |
Total Commercial Loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Commercial business loans | $ 129,878 | $ 126,040 |
Ratio of loan category to total loans receivable (percent) | 9.70% | 10.10% |
[1] | Derived from audited consolidated financial statements.

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