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Loans Receivable And Allowance For Loan Losses: Schedule of Allowance for Loan Losses (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |
Allowance for loan losses, Beginning Allowance | $ 9,553 | $ 9,826
Provision for (Recapture of) Loan Losses | 0 | 0
Charge- offs | (1) | (10)
Recoveries | 13 | 27
Allowance for loan losses, Ending Allowance | 9,565 | 9,843
Mortgage loans, one-to-four family |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |
Allowance for loan losses, Beginning Allowance | 1,082 | 1,239
Provision for (Recapture of) Loan Losses | 43 | (83)
Charge- offs | 0 | 0
Recoveries | 0 | 21
Allowance for loan losses, Ending Allowance | 1,125 | 1,177
Mortgage loans, multi-family |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |
Allowance for loan losses, Beginning Allowance | 447 | 473
Provision for (Recapture of) Loan Losses | (17) | (73)
Charge- offs | 0 | 0
Recoveries | 0 | 0
Allowance for loan losses, Ending Allowance | 430 | 400
Mortgage loans, commercial |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |
Allowance for loan losses, Beginning Allowance | 4,184 | 4,384
Provision for (Recapture of) Loan Losses | (91) | 144
Charge- offs | 0 | (5)
Recoveries | 0 | 0
Allowance for loan losses, Ending Allowance | 4,093 | 4,523
Mortgage loans, construction - custom and owner/builder |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |
Allowance for loan losses, Beginning Allowance | 699 | 619
Provision for (Recapture of) Loan Losses | 89 | 17
Charge- offs | 0 | 0
Recoveries | 0 | 0
Allowance for loan losses, Ending Allowance | 788 | 636
Mortgage loans, construction - speculative one-to-four family |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |
Allowance for loan losses, Beginning Allowance | 128 | 130
Provision for (Recapture of) Loan Losses | (61) | (30)
Charge- offs | 0 | 0
Recoveries | 8 | 0
Allowance for loan losses, Ending Allowance | 75 | 100
Mortgage loans, construction – commercial |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |
Allowance for loan losses, Beginning Allowance | 303 | 268
Provision for (Recapture of) Loan Losses | 93 | 14
Charge- offs | 0 | 0
Recoveries | 0 | 0
Allowance for loan losses, Ending Allowance | 396 | 282
Mortgage loans, construction - Multi-family |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |
Allowance for loan losses, Beginning Allowance | 173 | 316
Provision for (Recapture of) Loan Losses | 55 | 69
Charge- offs | 0 | 0
Recoveries | 0 | 0
Allowance for loan losses, Ending Allowance | 228 | 385
Mortgage loans, land |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |
Allowance for loan losses, Beginning Allowance | 918 | 820
Provision for (Recapture of) Loan Losses | (142) | 13
Charge- offs | 0 | (2)
Recoveries | 4 | 5
Allowance for loan losses, Ending Allowance | 780 | 836
Consumer loans, home equity and second mortgage |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |
Allowance for loan losses, Beginning Allowance | 983 | 939
Provision for (Recapture of) Loan Losses | (25) | (80)
Charge- offs | 0 | 0
Recoveries | 0 | 0
Allowance for loan losses, Ending Allowance | 958 | 859
Consumer loans, other |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |
Allowance for loan losses, Beginning Allowance | 121 | 156
Provision for (Recapture of) Loan Losses | 8 | 2
Charge- offs | (1) | (3)
Recoveries | 1 | 1
Allowance for loan losses, Ending Allowance | 129 | 156
Commercial business loans |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |
Allowance for loan losses, Beginning Allowance | 515 | 482
Provision for (Recapture of) Loan Losses | 48 | 7
Charge- offs | 0 | 0
Recoveries | 0 | 0
Allowance for loan losses, Ending Allowance | $ 563 | $ 489

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- Definition A valuation allowance for financing receivables that are expected to be uncollectible. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 + Details
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- Definition Amount of recovery of financing receivables doubtful of collection that were previously charged off. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(4) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 + Details
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- Definition Amount of direct write-downs of financing receivables charged against the allowance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 + Details
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- Definition Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.11) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 + Details
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