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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, 2021 | Mar. 31, 2020 | Mar. 31, 2021 | Mar. 31, 2020
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | $ 13,432 | $ 9,882 | $ 13,414 | $ 9,690
Provision for (Recapture of) Loan Losses | 0 | 2,000 | 0 | 2,200
Charge- offs | (3) | (1) | (3) | (26)
Recoveries | 5 | 9 | 23 | 26
Allowance for loan losses, Ending Allowance | 13,434 | 11,890 | 13,434 | 11,890
Mortgage loans, one-to-four family |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | 1,135 | 1,065 | 1,163 | 1,167
Provision for (Recapture of) Loan Losses | 16 | 83 | (12) | (21)
Charge- offs | 0 | 0 | 0 | 0
Recoveries | 0 | 1 | 0 | 3
Allowance for loan losses, Ending Allowance | 1,151 | 1,149 | 1,151 | 1,149
Mortgage loans, multi-family |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | 757 | 499 | 718 | 481
Provision for (Recapture of) Loan Losses | 27 | 96 | 66 | 114
Charge- offs | 0 | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0
Allowance for loan losses, Ending Allowance | 784 | 595 | 784 | 595
Mortgage loans, commercial |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | 7,136 | 4,410 | 7,144 | 4,154
Provision for (Recapture of) Loan Losses | 102 | 1,351 | 94 | 1,603
Charge- offs | 0 | 0 | 0 | 0
Recoveries | 0 | 1 | 0 | 5
Allowance for loan losses, Ending Allowance | 7,238 | 5,762 | 7,238 | 5,762
Mortgage loans, construction - custom and owner/builder |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | 770 | 754 | 832 | 755
Provision for (Recapture of) Loan Losses | (75) | (57) | (137) | (63)
Charge- offs | 0 | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 5
Allowance for loan losses, Ending Allowance | 695 | 697 | 695 | 697
Mortgage loans, construction - speculative one-to-four family |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | 182 | 248 | 158 | 212
Provision for (Recapture of) Loan Losses | (34) | (44) | (10) | (8)
Charge- offs | 0 | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0
Allowance for loan losses, Ending Allowance | 148 | 204 | 148 | 204
Mortgage loans, construction – commercial |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | 558 | 403 | 420 | 338
Provision for (Recapture of) Loan Losses | 156 | 20 | 294 | 85
Charge- offs | 0 | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0
Allowance for loan losses, Ending Allowance | 714 | 423 | 714 | 423
Mortgage loans, construction - Multi-family |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | 186 | 333 | 238 | 375
Provision for (Recapture of) Loan Losses | 137 | 61 | 85 | 19
Charge- offs | 0 | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0
Allowance for loan losses, Ending Allowance | 323 | 394 | 323 | 394
Mortgage loans, construction - Land development |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | 123 | 48 | 133 | 67
Provision for (Recapture of) Loan Losses | (104) | 32 | (114) | 13
Charge- offs | 0 |  | 0 | 0
Recoveries | 0 | 0 | 0 | 0
Allowance for loan losses, Ending Allowance | 19 | 80 | 19 | 80
Mortgage loans, land |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | 474 | 654 | 572 | 697
Provision for (Recapture of) Loan Losses | (72) | 19 | (175) | (29)
Charge- offs | 0 | 0 | 0 | 0
Recoveries | 5 | 5 | 10 | 10
Allowance for loan losses, Ending Allowance | 407 | 678 | 407 | 678
Consumer loans, home equity and second mortgage |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | 605 | 609 | 593 | 623
Provision for (Recapture of) Loan Losses | (53) | 47 | (41) | 33
Charge- offs | 0 | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0
Allowance for loan losses, Ending Allowance | 552 | 656 | 552 | 656
Consumer loans, other |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | 57 | 87 | 71 | 99
Provision for (Recapture of) Loan Losses | 0 | (10) | (18) | (13)
Charge- offs | (1) | (1) | (1) | (11)
Recoveries | 0 | 2 | 4 | 3
Allowance for loan losses, Ending Allowance | 56 | 78 | 56 | 78
Commercial business loans |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | 1,449 | 772 | 1,372 | 722
Provision for (Recapture of) Loan Losses | (100) | 402 | (32) | 467
Charge- offs | (2) | 0 | (2) | (15)
Recoveries | 0 | 0 | 9 | 0
Allowance for loan losses, Ending Allowance | 1,347 | $ 1,174 | 1,347 | $ 1,174
SBA PPP Loans |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | 0 |  | 0 |
Provision for (Recapture of) Loan Losses | 0 |  | 0 |
Charge- offs | 0 |  | 0 |
Recoveries | 0 |  | 0 |
Allowance for loan losses, Ending Allowance | $ 0 |  | $ 0 |

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