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Loans Receivable And Allowance For Loan Losses: Schedule of Allowance for Loan Losses (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 9 Months Ended
--- | --- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Mar. 31, 2025 | Jun. 30, 2025 | Jun. 30, 2024
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Allowance for loan losses, Beginning Allowance | $ 17,525 | $ 16,818 | $ 17,478 | $ 17,478 | $ 15,817
Provision for (Recapture of) Credit Losses | 351 | 264 |  | 640 | 810
Charge- Offs | 0 | (81) |  | (245) | (87)
Recoveries | 2 | 45 |  | 5 | 45
Allowance for loan losses, Ending Allowance | 17,878 | 17,046 | 17,525 | 17,878 | 17,046
Cumulative Effect, Period of Adoption, Adjustment |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Allowance for loan losses, Beginning Allowance |  |  |  |  | 461
One-to four-family |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Allowance for loan losses, Beginning Allowance | 2,800 | 2,185 | 2,632 | 2,632 | 2,417
Provision for (Recapture of) Credit Losses | 93 | 49 |  | 261 | 225
Charge- Offs | 0 | 0 |  | 0 | 0
Recoveries | 0 | 43 |  | 0 | 43
Allowance for loan losses, Ending Allowance | 2,893 | 2,277 | 2,800 | 2,893 | 2,277
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)
Multi-family |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Allowance for loan losses, Beginning Allowance | 1,315 | 1,358 | 1,308 | 1,308 | 1,156
Provision for (Recapture of) Credit Losses | 265 | 84 |  | 272 | 406
Charge- Offs | 0 | 0 |  | 0 | 0
Recoveries | 0 | 0 |  | 0 | 0
Allowance for loan losses, Ending Allowance | 1,580 | 1,442 | 1,315 | 1,580 | 1,442
Multi-family | Cumulative Effect, Period of Adoption, Adjustment |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Allowance for loan losses, Beginning Allowance |  |  |  |  | (120)
Commercial real estate |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Allowance for loan losses, Beginning Allowance | 6,983 | 6,954 | 6,934 | 6,934 | 7,209
Provision for (Recapture of) Credit Losses | 180 | 241 |  | 229 | 480
Charge- Offs | 0 | 0 |  | 0 | 0
Recoveries | 0 | 0 |  | 0 | 0
Allowance for loan losses, Ending Allowance | 7,163 | 7,195 | 6,983 | 7,163 | 7,195
Commercial real estate | Cumulative Effect, Period of Adoption, Adjustment |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Allowance for loan losses, Beginning Allowance |  |  |  |  | (494)
Construction-custom & owner/builder (1) |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Allowance for loan losses, Beginning Allowance | 1,217 | 1,215 | 1,328 | 1,328 | 750
Provision for (Recapture of) Credit Losses | 25 | 76 |  | (86) | (1)
Charge- Offs | 0 | 0 |  | 0 | 0
Recoveries | 0 | 0 |  | 0 | 0
Allowance for loan losses, Ending Allowance | 1,242 | 1,291 | 1,217 | 1,242 | 1,291
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
Construction-speculative one-to four-family (1) |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Allowance for loan losses, Beginning Allowance | 89 | 142 | 128 | 128 | 148
Provision for (Recapture of) Credit Losses | 8 | (47) |  | (31) | (37)
Charge- Offs | 0 | 0 |  | 0 | 0
Recoveries | 0 | 0 |  | 0 | 0
Allowance for loan losses, Ending Allowance | 97 | 95 | 89 | 97 | 95
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)
Construction-commercial (1) |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Allowance for loan losses, Beginning Allowance | 358 | 451 | 537 | 537 | 316
Provision for (Recapture of) Credit Losses | (101) | (58) |  | (280) | (99)
Charge- Offs | 0 | 0 |  | 0 | 0
Recoveries | 0 | 0 |  | 0 | 0
Allowance for loan losses, Ending Allowance | 257 | 393 | 358 | 257 | 393
Construction-commercial (1) | Cumulative Effect, Period of Adoption, Adjustment |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Allowance for loan losses, Beginning Allowance |  |  |  |  | 176
Construction-multi-family (1) |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Allowance for loan losses, Beginning Allowance | 543 | 478 | 456 | 456 | 602
Provision for (Recapture of) Credit Losses | (165) | (121) |  | (78) | (449)
Charge- Offs | 0 | 0 |  | 0 | 0
Recoveries | 0 | 0 |  | 0 | 0
Allowance for loan losses, Ending Allowance | 378 | 357 | 543 | 378 | 357
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
Construction-land development (1) |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Allowance for loan losses, Beginning Allowance | 375 | 255 | 335 | 335 | 274
Provision for (Recapture of) Credit Losses | 38 | 35 |  | 78 | (9)
Charge- Offs | 0 | 0 |  | 0 |
Recoveries | 0 | 0 |  | 0 | 0
Allowance for loan losses, Ending Allowance | 413 | 290 | 375 | 413 | 290
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
Land |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Allowance for loan losses, Beginning Allowance | 852 | 840 | 793 | 793 | 406
Provision for (Recapture of) Credit Losses | (39) | (12) |  | 20 | 104
Charge- Offs | 0 | 0 |  | 0 | 0
Recoveries | 0 | 0 |  | 0 | 0
Allowance for loan losses, Ending Allowance | 813 | 828 | 852 | 813 | 828
Land | Cumulative Effect, Period of Adoption, Adjustment |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Allowance for loan losses, Beginning Allowance |  |  |  |  | 318
Home equity and second mortgage |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Allowance for loan losses, Beginning Allowance | 345 | 305 | 348 | 348 | 519
Provision for (Recapture of) Credit Losses | 66 | 9 |  | 63 | 38
Charge- Offs | 0 | 0 |  | 0 | 0
Recoveries | 0 | 0 |  | 0 | 0
Allowance for loan losses, Ending Allowance | 411 | 314 | 345 | 411 | 314
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)
Consumer loans, other |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Allowance for loan losses, Beginning Allowance | 33 | 45 | 39 | 39 | 53
Provision for (Recapture of) Credit Losses | 4 | 2 |  | 2 | 7
Charge- Offs | 0 | (2) |  | (4) | (8)
Recoveries | 1 | 0 |  | 1 | 0
Allowance for loan losses, Ending Allowance | 38 | 45 | 33 | 38 | 45
Consumer loans, other | Cumulative Effect, Period of Adoption, Adjustment |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Allowance for loan losses, Beginning Allowance |  |  |  |  | (7)
Commercial business |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Allowance for loan losses, Beginning Allowance | 2,615 | 2,590 | 2,640 | 2,640 | 1,967
Provision for (Recapture of) Credit Losses | (23) | 6 |  | 190 | 145
Charge- Offs | 0 | (79) |  | (241) | (79)
Recoveries | 1 | 2 |  | 4 | 2
Allowance for loan losses, Ending Allowance | $ 2,593 | $ 2,519 | $ 2,615 | $ 2,593 | 2,519
Commercial business | Cumulative Effect, Period of Adoption, Adjustment |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Allowance for loan losses, Beginning Allowance |  |  |  |  | $ 484

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