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Loans Receivable and Allowance for Loan Losses: Schedule of Loans receivable and Loans held for sale (Details) - USD ($) $ in Thousands | Sep. 30, 2019 | Sep. 30, 2018
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans receivable | $ 991,376 | $ 820,795
Undisbursed portion of construction loans in process | 92,226 | 83,237
Deferred loan origination fees | 2,798 | 2,637
Allowance for loan losses | 9,690 | 9,530
Less: Loans in process, Deferred fees and Allowance for loan losses | 104,714 | 95,404
Total loans receivable, net | 886,662 | 725,391
Unamortized discounts, loans receivable | 1,386 |
Total mortgage loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Mortgage loans | 882,110 | 736,886
Mortgage loans, one-to-four family |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Mortgage loans | 132,661 | 115,941
Mortgage loans, multi-family |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Mortgage loans | 76,036 | 61,928
Mortgage loans, commercial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Mortgage loans | 419,117 | 345,113
Mortgage loans, construction - custom and owner/builder |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Mortgage loans | 128,848 | 119,555
Mortgage loans, construction - speculative one-to-four family |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Mortgage loans | 16,445 | 15,433
Mortgage loans, construction - commercial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Mortgage loans | 39,566 | 39,590
Mortgage loans, construction - multi-family |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Mortgage loans | 36,263 | 10,740
Mortgage loans - construction - land development |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Mortgage loans | 2,404 | 3,040
Mortgage loans, land |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Mortgage loans | 30,770 | 25,546
Total consumer loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Consumer loans | 44,502 | 40,856
Consumer loans, home equity and second mortgage |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Consumer loans | 40,190 | 37,341
Consumer loans, other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Consumer loans | 4,312 | 3,515
Commercial business loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Commercial business loans | $ 64,764 | $ 43,053

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- Definition Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(d)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b)(1)(ii) -URI http://asc.fasb.org/extlink&oid=118939070&loc=d3e15032-111544 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SAB Topic 6.L.1) -URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74567-122707 + Details
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