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Loans Receivable And Allowance For Loan Losses: Schedule of Allowance for Loan Losses (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Sep. 30, 2024
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Allowance for loan losses, Beginning Allowance | $ 17,478 | $ 15,817 | $ 15,817
Provision for (Recapture of) Credit Losses | 52 | 379 |
Charge- offs | (244) | (2) |
Recoveries | 2 | 0 |
Allowance for loan losses, Ending Allowance | 17,288 | 16,655 | 17,478
Cumulative Effect, Period of Adoption, Adjustment |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Allowance for loan losses, Beginning Allowance |  | 461 | 461
One-to four-family |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Allowance for loan losses, Beginning Allowance | 2,632 | 2,417 | 2,417
Provision for (Recapture of) Credit Losses | 67 | 87 |
Charge- offs | 0 | 0 |
Recoveries | 0 | 0 |
Allowance for loan losses, Ending Allowance | 2,699 | 2,096 | 2,632
One-to four-family | Cumulative Effect, Period of Adoption, Adjustment |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Allowance for loan losses, Beginning Allowance |  | (408) | (408)
Multi-family |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Allowance for loan losses, Beginning Allowance | 1,308 | 1,156 | 1,156
Provision for (Recapture of) Credit Losses | 3 | 164 |
Charge- offs | 0 | 0 |
Recoveries | 0 | 0 |
Allowance for loan losses, Ending Allowance | 1,311 | 1,200 | 1,308
Multi-family | Cumulative Effect, Period of Adoption, Adjustment |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Allowance for loan losses, Beginning Allowance |  | (120) | (120)
Commercial real estate |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Allowance for loan losses, Beginning Allowance | 6,934 | 7,209 | 7,209
Provision for (Recapture of) Credit Losses | (42) | 107 |
Charge- offs | 0 | 0 |
Recoveries | 0 | 0 |
Allowance for loan losses, Ending Allowance | 6,892 | 6,822 | 6,934
Commercial real estate | Cumulative Effect, Period of Adoption, Adjustment |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Allowance for loan losses, Beginning Allowance |  | (494) | (494)
Construction-custom & owner/builder (1) |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Allowance for loan losses, Beginning Allowance | 1,328 | 750 | 750
Provision for (Recapture of) Credit Losses | (67) | (58) |
Charge- offs | 0 | 0 |
Recoveries | 0 | 0 |
Allowance for loan losses, Ending Allowance | 1,261 | 1,234 | 1,328
Construction-custom & owner/builder (1) | Cumulative Effect, Period of Adoption, Adjustment |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Allowance for loan losses, Beginning Allowance |  | 542 | 542
Construction-speculative one-to four-family (1) |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Allowance for loan losses, Beginning Allowance | 128 | 148 | 148
Provision for (Recapture of) Credit Losses | (46) | 0 |
Charge- offs | 0 | 0 |
Recoveries | 0 | 0 |
Allowance for loan losses, Ending Allowance | 82 | 132 | 128
Construction-speculative one-to four-family (1) | Cumulative Effect, Period of Adoption, Adjustment |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Allowance for loan losses, Beginning Allowance |  | (16) | (16)
Construction-commercial (1) |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Allowance for loan losses, Beginning Allowance | 537 | 316 | 316
Provision for (Recapture of) Credit Losses | (208) | (62) |
Charge- offs | 0 | 0 |
Recoveries | 0 | 0 |
Allowance for loan losses, Ending Allowance | 329 | 430 | 537
Construction-commercial (1) | Cumulative Effect, Period of Adoption, Adjustment |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Allowance for loan losses, Beginning Allowance |  | 176 | 176
Construction-multi-family (1) |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Allowance for loan losses, Beginning Allowance | 456 | 602 | 602
Provision for (Recapture of) Credit Losses | 71 | (71) |
Charge- offs | 0 | 0 |
Recoveries | 0 | 0 |
Allowance for loan losses, Ending Allowance | 527 | 735 | 456
Construction-multi-family (1) | Cumulative Effect, Period of Adoption, Adjustment |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Allowance for loan losses, Beginning Allowance |  | 204 | 204
Construction-land development (1) |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Allowance for loan losses, Beginning Allowance | 335 | 274 | 274
Provision for (Recapture of) Credit Losses | (43) | (1) |
Charge- offs | 0 |  |
Recoveries | 0 | 0 |
Allowance for loan losses, Ending Allowance | 292 | 298 | 335
Construction-land development (1) | Cumulative Effect, Period of Adoption, Adjustment |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Allowance for loan losses, Beginning Allowance |  | 25 | 25
Land |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Allowance for loan losses, Beginning Allowance | 793 | 406 | 406
Provision for (Recapture of) Credit Losses | 9 | 33 |
Charge- offs | 0 | 0 |
Recoveries | 0 | 0 |
Allowance for loan losses, Ending Allowance | 802 | 757 | 793
Land | Cumulative Effect, Period of Adoption, Adjustment |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Allowance for loan losses, Beginning Allowance |  | 318 | 318
Home equity and second mortgage |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Allowance for loan losses, Beginning Allowance | 348 | 519 | 519
Provision for (Recapture of) Credit Losses | 5 | 10 |
Charge- offs | 0 | 0 |
Recoveries | 0 | 0 |
Allowance for loan losses, Ending Allowance | 353 | 286 | 348
Home equity and second mortgage | Cumulative Effect, Period of Adoption, Adjustment |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Allowance for loan losses, Beginning Allowance |  | (243) | (243)
Consumer loans, other |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Allowance for loan losses, Beginning Allowance | 39 | 53 | 53
Provision for (Recapture of) Credit Losses | (3) | 2 |
Charge- offs | (3) | (2) |
Recoveries | 0 | 0 |
Allowance for loan losses, Ending Allowance | 33 | 46 | 39
Consumer loans, other | Cumulative Effect, Period of Adoption, Adjustment |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Allowance for loan losses, Beginning Allowance |  | (7) | (7)
Commercial business |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Allowance for loan losses, Beginning Allowance | 2,640 | 1,967 | 1,967
Provision for (Recapture of) Credit Losses | 306 | 168 |
Charge- offs | (241) | 0 |
Recoveries | 2 | 0 |
Allowance for loan losses, Ending Allowance | $ 2,707 | 2,619 | 2,640
Commercial business | Cumulative Effect, Period of Adoption, Adjustment |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Allowance for loan losses, Beginning Allowance |  | $ 484 | $ 484

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