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Loans Receivable And Allowance For Loan Losses: Schedule of Allowance for Loan Losses (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | $ 16,818 | $ 14,698 | $ 15,817 | $ 13,703
Provision for (Recapture of) Credit Losses | 264 | 610 | 810 | 1,610
Charge- offs |  | (1) | (87) | (7)
Recoveries | 45 | 0 | 45 | 1
Allowance for loan losses, Ending Allowance | 17,046 | 15,307 | 17,046 | 15,307
Impact of Adopting CECL (ASU 2016-13) |  |  |  |
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 | 2,185 | 2,052 | 2,417 | 1,658
Provision for (Recapture of) Credit Losses | 49 | 126 | 225 | 520
Charge- offs |  | 0 | 0 | 0
Recoveries | 43 | 0 | 43 | 0
Allowance for loan losses, Ending Allowance | 2,277 | 2,178 | 2,277 | 2,178
One-to four-family | Impact of Adopting CECL (ASU 2016-13) |  |  |  |
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 | 1,358 | 938 | 1,156 | 855
Provision for (Recapture of) Credit Losses | 84 | 74 | 406 | 157
Charge- offs |  | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0
Allowance for loan losses, Ending Allowance | 1,442 | 1,012 | 1,442 | 1,012
Multi-family | Impact of Adopting CECL (ASU 2016-13) |  |  |  |
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 | 6,954 | 6,904 | 7,209 | 6,682
Provision for (Recapture of) Credit Losses | 241 | 125 | 480 | 347
Charge- offs |  | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0
Allowance for loan losses, Ending Allowance | 7,195 | 7,029 | 7,195 | 7,029
Commercial real estate | Impact of Adopting CECL (ASU 2016-13) |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance |  |  | (494) |
Construction-custom & owner/builder |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | 1,215 | 726 | 750 | 675
Provision for (Recapture of) Credit Losses | 76 | 73 | (1) | 124
Charge- offs |  | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0
Allowance for loan losses, Ending Allowance | 1,291 | 799 | 1,291 | 799
Construction-custom & owner/builder | Impact of Adopting CECL (ASU 2016-13) |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance |  |  | 542 |
Construction-speculative one-to four-family |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | 142 | 121 | 148 | 130
Provision for (Recapture of) Credit Losses | (47) | (11) | (37) | (20)
Charge- offs |  | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0
Allowance for loan losses, Ending Allowance | 95 | 110 | 95 | 110
Construction-speculative one-to four-family | Impact of Adopting CECL (ASU 2016-13) |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance |  |  | (16) |
Construction-commercial |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | 451 | 267 | 316 | 343
Provision for (Recapture of) Credit Losses | (58) | 24 | (99) | (52)
Charge- offs |  | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0
Allowance for loan losses, Ending Allowance | 393 | 291 | 393 | 291
Construction-commercial | Impact of Adopting CECL (ASU 2016-13) |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance |  |  | 176 |
Construction-multi-family |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | 478 | 662 | 602 | 447
Provision for (Recapture of) Credit Losses | (121) | 30 | (449) | 245
Charge- offs |  | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0
Allowance for loan losses, Ending Allowance | 357 | 692 | 357 | 692
Construction-multi-family | Impact of Adopting CECL (ASU 2016-13) |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance |  |  | 204 |
Construction-land development |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | 255 | 245 | 274 | 233
Provision for (Recapture of) Credit Losses | 35 | (12) | (9) | 0
Charge- offs |  |  | 0 | 0
Recoveries | 0 | 0 | 0 | 0
Allowance for loan losses, Ending Allowance | 290 | 233 | 290 | 233
Construction-land development | Impact of Adopting CECL (ASU 2016-13) |  |  |  |
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 | 840 | 363 | 406 | 397
Provision for (Recapture of) Credit Losses | (12) | 26 | 104 | (8)
Charge- offs |  | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0
Allowance for loan losses, Ending Allowance | 828 | 389 | 828 | 389
Land | Impact of Adopting CECL (ASU 2016-13) |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance |  |  | 318 |
Home equity |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | 305 | 507 | 519 | 440
Provision for (Recapture of) Credit Losses | 9 | 35 | 38 | 102
Charge- offs |  | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0
Allowance for loan losses, Ending Allowance | 314 | 542 | 314 | 542
Home equity | Impact of Adopting CECL (ASU 2016-13) |  |  |  |
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 | 45 | 47 | 53 | 42
Provision for (Recapture of) Credit Losses | 2 | 5 | 7 | 11
Charge- offs |  | (1) | (8) | (2)
Recoveries | 0 | 0 | 0 | 0
Allowance for loan losses, Ending Allowance | 45 | 51 | 45 | 51
Consumer loans, other | Impact of Adopting CECL (ASU 2016-13) |  |  |  |
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 | 2,590 | 1,866 | 1,967 | 1,801
Provision for (Recapture of) Credit Losses | 6 | 115 | 145 | 184
Charge- offs |  | 0 | (79) | (5)
Recoveries | 2 | 0 | 2 | 1
Allowance for loan losses, Ending Allowance | $ 2,519 | $ 1,981 | 2,519 | $ 1,981
Commercial business | Impact of Adopting CECL (ASU 2016-13) |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance |  |  | 484 |
SBA PPP |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance |  |  | $ 0 |

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