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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
--- | --- | ---
Mar. 31, 2023 | Mar. 31, 2022 | Mar. 31, 2023 | Mar. 31, 2022
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | $ 14,229 | $ 13,468 | $ 13,703 | $ 13,469
Provision for (Recapture of) Loan Losses | 475 | 0 | 1,000 | 0
Charge- offs | (6) | (50) | (6) | (51)
Recoveries | 0 | 15 | 1 | 15
Allowance for loan losses, Ending Allowance | 14,698 | 13,433 | 14,698 | 13,433
Mortgage loans, one-to-four family |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | 1,888 | 1,237 | 1,658 | 1,154
Provision for (Recapture of) Loan Losses | 164 | 10 | 394 | 93
Charge- offs | 0 | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0
Allowance for loan losses, Ending Allowance | 2,052 | 1,247 | 2,052 | 1,247
Mortgage loans, multi-family |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | 871 | 748 | 855 | 765
Provision for (Recapture of) Loan Losses | 67 | (13) | 83 | (30)
Charge- offs | 0 | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0
Allowance for loan losses, Ending Allowance | 938 | 735 | 938 | 735
Mortgage loans, commercial |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | 6,794 | 6,807 | 6,682 | 6,813
Provision for (Recapture of) Loan Losses | 110 | 124 | 222 | 118
Charge- offs | 0 | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0
Allowance for loan losses, Ending Allowance | 6,904 | 6,931 | 6,904 | 6,931
Mortgage loans, construction - custom and owner/builder |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | 673 | 671 | 675 | 644
Provision for (Recapture of) Loan Losses | 53 | 15 | 51 | 42
Charge- offs | 0 | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0
Allowance for loan losses, Ending Allowance | 726 | 686 | 726 | 686
Mortgage loans, construction - speculative one-to-four family |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | 125 | 153 | 130 | 188
Provision for (Recapture of) Loan Losses | (4) | (27) | (9) | (62)
Charge- offs | 0 | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0
Allowance for loan losses, Ending Allowance | 121 | 126 | 121 | 126
Mortgage loans, construction – commercial |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | 323 | 593 | 343 | 784
Provision for (Recapture of) Loan Losses | (56) | (130) | (76) | (321)
Charge- offs | 0 | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0
Allowance for loan losses, Ending Allowance | 267 | 463 | 267 | 463
Mortgage loans, construction - Multi-family |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | 577 | 460 | 447 | 436
Provision for (Recapture of) Loan Losses | 85 | (24) | 215 | 0
Charge- offs | 0 | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0
Allowance for loan losses, Ending Allowance | 662 | 436 | 662 | 436
Mortgage loans, construction - Land development |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | 222 | 157 | 233 | 124
Provision for (Recapture of) Loan Losses | 23 | (31) | 12 | 2
Charge- offs | 0 |  | 0 | 0
Recoveries | 0 | 0 | 0 | 0
Allowance for loan losses, Ending Allowance | 245 | 126 | 245 | 126
Mortgage loans, land |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | 383 | 435 | 397 | 470
Provision for (Recapture of) Loan Losses | (20) | (58) | (34) | (93)
Charge- offs | 0 | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0
Allowance for loan losses, Ending Allowance | 363 | 377 | 363 | 377
Consumer loans, home equity and second mortgage |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | 493 | 532 | 440 | 528
Provision for (Recapture of) Loan Losses | 14 | (63) | 67 | (59)
Charge- offs | 0 | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0
Allowance for loan losses, Ending Allowance | 507 | 469 | 507 | 469
Consumer loans, other |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | 47 | 48 | 42 | 50
Provision for (Recapture of) Loan Losses | 1 | (4) | 6 | (5)
Charge- offs | (1) | (1) | (1) | (2)
Recoveries | 0 | 1 | 0 | 1
Allowance for loan losses, Ending Allowance | 47 | 44 | 47 | 44
Commercial business loans |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | 1,833 | 1,627 | 1,801 | 1,513
Provision for (Recapture of) Loan Losses | 38 | 201 | 69 | 315
Charge- offs | (5) | (49) | (5) | (49)
Recoveries | 0 | 14 | 1 | 14
Allowance for loan losses, Ending Allowance | 1,866 | $ 1,793 | 1,866 | $ 1,793
SBA PPP Loans |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance |  |  | 0 |
Allowance for loan losses, Ending Allowance | $ 0 |  | $ 0 |

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