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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, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | $ 13,434 | $ 11,890 | $ 13,414 | $ 9,690
Provision for (Recapture of) Loan Losses | 0 | 1,000 | 0 | 3,200
Charge- offs | 0 | (1) | (3) | (27)
Recoveries | 35 | 5 | 58 | 31
Allowance for loan losses, Ending Allowance | 13,469 | 12,894 | 13,469 | 12,894
Mortgage loans, one-to-four family |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | 1,151 | 1,149 | 1,163 | 1,167
Provision for (Recapture of) Loan Losses | (9) | 14 | (21) | (7)
Charge- offs | 0 | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 3
Allowance for loan losses, Ending Allowance | 1,142 | 1,163 | 1,142 | 1,163
Mortgage loans, multi-family |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | 784 | 595 | 718 | 481
Provision for (Recapture of) Loan Losses | 26 | 70 | 92 | 184
Charge- offs | 0 | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0
Allowance for loan losses, Ending Allowance | 810 | 665 | 810 | 665
Mortgage loans, commercial |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | 7,238 | 5,762 | 7,144 | 4,154
Provision for (Recapture of) Loan Losses | (277) | 957 | (183) | 2,560
Charge- offs | 0 | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 5
Allowance for loan losses, Ending Allowance | 6,961 | 6,719 | 6,961 | 6,719
Mortgage loans, construction - custom and owner/builder |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | 695 | 697 | 832 | 755
Provision for (Recapture of) Loan Losses | (91) | 110 | (228) | 47
Charge- offs | 0 | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 5
Allowance for loan losses, Ending Allowance | 604 | 807 | 604 | 807
Mortgage loans, construction - speculative one-to-four family |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | 148 | 204 | 158 | 212
Provision for (Recapture of) Loan Losses | 36 | (40) | 26 | (48)
Charge- offs | 0 | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0
Allowance for loan losses, Ending Allowance | 184 | 164 | 184 | 164
Mortgage loans, construction – commercial |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | 714 | 423 | 420 | 338
Provision for (Recapture of) Loan Losses | 44 | (119) | 338 | (34)
Charge- offs | 0 | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0
Allowance for loan losses, Ending Allowance | 758 | 304 | 758 | 304
Mortgage loans, construction - Multi-family |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | 323 | 394 | 238 | 375
Provision for (Recapture of) Loan Losses | 125 | (76) | 210 | (57)
Charge- offs | 0 | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0
Allowance for loan losses, Ending Allowance | 448 | 318 | 448 | 318
Mortgage loans, construction - Land development |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | 19 | 80 | 133 | 67
Provision for (Recapture of) Loan Losses | 12 | 27 | (102) | 40
Charge- offs | 0 |  | 0 | 0
Recoveries | 0 | 0 | 0 | 0
Allowance for loan losses, Ending Allowance | 31 | 107 | 31 | 107
Mortgage loans, land |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | 407 | 678 | 572 | 697
Provision for (Recapture of) Loan Losses | (58) | (41) | (233) | (70)
Charge- offs | 0 | 0 | 0 | 0
Recoveries | 35 | 5 | 45 | 15
Allowance for loan losses, Ending Allowance | 384 | 642 | 384 | 642
Consumer loans, home equity and second mortgage |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | 552 | 656 | 593 | 623
Provision for (Recapture of) Loan Losses | (1) | (24) | (42) | 9
Charge- offs | 0 | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0
Allowance for loan losses, Ending Allowance | 551 | 632 | 551 | 632
Consumer loans, other |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | 56 | 78 | 71 | 99
Provision for (Recapture of) Loan Losses | 0 | (4) | (18) | (17)
Charge- offs | 0 | (1) | (1) | (12)
Recoveries | 0 | 0 | 4 | 3
Allowance for loan losses, Ending Allowance | 56 | 73 | 56 | 73
Commercial business loans |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Allowance | 1,347 | 1,174 | 1,372 | 722
Provision for (Recapture of) Loan Losses | 193 | 126 | 161 | 593
Charge- offs | 0 | 0 | (2) | (15)
Recoveries | 0 | 0 | 9 | 0
Allowance for loan losses, Ending Allowance | $ 1,540 | $ 1,300 | $ 1,540 | $ 1,300

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