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Loans Receivable And Allowance For Loan Losses: Financing Receivable Credit Quality Indicators (Details) - USD ($) $ in Thousands | Dec. 31, 2018 | Sep. 30, 2018
--- | --- | ---
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | $ 869,478 | $ 737,558
Mortgage loans, one-to-four family |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 130,219 | 115,941
Mortgage loans, multi-family |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 72,076 | 61,928
Mortgage loans, commercial |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 426,144 | 345,113
Mortgage loans, construction - custom and owner/builder |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 64,313 | 67,024
Mortgage loans, construction - speculative one-to-four family |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 9,221 | 7,107
Mortgage loans, construction – commercial |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 25,883 | 23,440
Mortgage loans, construction - Multi-family |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 9,333 | 5,983
Mortgage loans, construction - Land development |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 6,442 | 1,567
Mortgage loans, land |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 22,734 | 25,546
Consumer loans, home equity and second mortgage |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 40,468 | 37,341
Consumer loans, other |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 4,443 | 3,515
Commercial business loans |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 58,202 | 43,053
Pass |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 852,556 | 720,600
Pass | Mortgage loans, one-to-four family |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 127,116 | 113,148
Pass | Mortgage loans, multi-family |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 72,076 | 61,928
Pass | Mortgage loans, commercial |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 416,329 | 334,908
Pass | Mortgage loans, construction - custom and owner/builder |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 64,094 | 66,720
Pass | Mortgage loans, construction - speculative one-to-four family |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 9,221 | 7,107
Pass | Mortgage loans, construction – commercial |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 25,883 | 23,440
Pass | Mortgage loans, construction - Multi-family |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 9,333 | 5,983
Pass | Mortgage loans, construction - Land development |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 6,442 | 1,567
Pass | Mortgage loans, land |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 20,116 | 22,810
Pass | Consumer loans, home equity and second mortgage |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 39,802 | 36,697
Pass | Consumer loans, other |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 4,409 | 3,480
Pass | Commercial business loans |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 57,735 | 42,812
Watch |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 10,472 | 10,653
Watch | Mortgage loans, one-to-four family |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 707 | 882
Watch | Mortgage loans, multi-family |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 0 | 0
Watch | Mortgage loans, commercial |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 8,332 | 8,375
Watch | Mortgage loans, construction - custom and owner/builder |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 219 | 304
Watch | Mortgage loans, construction - speculative one-to-four family |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 0 | 0
Watch | Mortgage loans, construction – commercial |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 0 | 0
Watch | Mortgage loans, construction - Multi-family |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 0 | 0
Watch | Mortgage loans, construction - Land development |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 0 | 0
Watch | Mortgage loans, land |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 979 | 988
Watch | Consumer loans, home equity and second mortgage |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 82 | 82
Watch | Consumer loans, other |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 34 | 0
Watch | Commercial business loans |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 119 | 22
Special Mention |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 2,515 | 3,123
Special Mention | Mortgage loans, one-to-four family |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 574 | 581
Special Mention | Mortgage loans, multi-family |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 0 | 0
Special Mention | Mortgage loans, commercial |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 649 | 988
Special Mention | Mortgage loans, construction - custom and owner/builder |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 0 | 0
Special Mention | Mortgage loans, construction - speculative one-to-four family |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 0 | 0
Special Mention | Mortgage loans, construction – commercial |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 0 | 0
Special Mention | Mortgage loans, construction - Multi-family |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 0 | 0
Special Mention | Mortgage loans, construction - Land development |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 0 | 0
Special Mention | Mortgage loans, land |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 1,243 | 1,505
Special Mention | Consumer loans, home equity and second mortgage |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 0 | 0
Special Mention | Consumer loans, other |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 0 | 0
Special Mention | Commercial business loans |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 49 | 49
Substandard |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 3,935 | 3,182
Substandard | Mortgage loans, one-to-four family |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 1,822 | 1,330
Substandard | Mortgage loans, multi-family |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 0 | 0
Substandard | Mortgage loans, commercial |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 834 | 842
Substandard | Mortgage loans, construction - custom and owner/builder |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 0 | 0
Substandard | Mortgage loans, construction - speculative one-to-four family |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 0 | 0
Substandard | Mortgage loans, construction – commercial |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 0 | 0
Substandard | Mortgage loans, construction - Multi-family |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 0 | 0
Substandard | Mortgage loans, construction - Land development |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 0 | 0
Substandard | Mortgage loans, land |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 396 | 243
Substandard | Consumer loans, home equity and second mortgage |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 584 | 562
Substandard | Consumer loans, other |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | 0 | 35
Substandard | Commercial business loans |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans receivable | $ 299 | $ 170

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