Loans Receivable And Allowance For Loan Losses: Schedule of Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended
Dec. 31, 2016	Dec. 31, 2015
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	$ 9,826	$ 9,924
Provision for (Recapture of) Loan Losses	0	0
Charge- offs	(10)	(77)
Recoveries	27	42
Allowance for loan losses, Ending Allowance	9,843	9,889
Mortgage loans, one-to-four family
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	1,239	1,480
Provision for (Recapture of) Loan Losses	(83)	(37)
Charge- offs	0	(26)
Recoveries	21	3
Allowance for loan losses, Ending Allowance	1,177	1,420
Mortgage loans, multi-family
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	473	392
Provision for (Recapture of) Loan Losses	(73)	(19)
Charge- offs	0	0
Recoveries	0	0
Allowance for loan losses, Ending Allowance	400	373
Mortgage loans, commercial
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	4,384	4,065
Provision for (Recapture of) Loan Losses	144	(140)
Charge- offs	(5)	(27)
Recoveries	0	0
Allowance for loan losses, Ending Allowance	4,523	3,898
Mortgage loans, construction - custom and owner/builder
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	619	451
Provision for (Recapture of) Loan Losses	17	104
Charge- offs	0	0
Recoveries	0	0
Allowance for loan losses, Ending Allowance	636	555
Mortgage loans, construction - speculative one-to-four family
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	130	123
Provision for (Recapture of) Loan Losses	(30)	(1)
Charge- offs	0	0
Recoveries	0	0
Allowance for loan losses, Ending Allowance	100	122
Mortgage loans, construction – commercial
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	268	426
Provision for (Recapture of) Loan Losses	14	60
Charge- offs	0	0
Recoveries	0	0
Allowance for loan losses, Ending Allowance	282	486
Mortgage loans, construction - Multi-family
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	316	283
Provision for (Recapture of) Loan Losses	69	22
Charge- offs	0	0
Recoveries	0	31
Allowance for loan losses, Ending Allowance	385	336
Mortgage loans, land
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	820	1,021
Provision for (Recapture of) Loan Losses	13	(96)
Charge- offs	(2)	(8)
Recoveries	5	6
Allowance for loan losses, Ending Allowance	836	923
Consumer loans, home equity and second mortgage
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	939	1,073
Provision for (Recapture of) Loan Losses	(80)	42
Charge- offs	0	(13)
Recoveries	0	0
Allowance for loan losses, Ending Allowance	859	1,102
Consumer loans, other
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	156	187
Provision for (Recapture of) Loan Losses	2	(24)
Charge- offs	(3)	(3)
Recoveries	1	1
Allowance for loan losses, Ending Allowance	156	161
Commercial business loans
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	482	423
Provision for (Recapture of) Loan Losses	7	89
Charge- offs	0	0
Recoveries	0	1
Allowance for loan losses, Ending Allowance	$ 489	$ 513

A valuation allowance for financing receivables that are expected to be uncollectible.

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- Definition

Amount of recovery of financing receivables doubtful of collection that were previously charged off.

+ References

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

Amount of direct write-downs of financing receivables charged against the allowance.

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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=66008989&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=66902209&loc=d3e3602-108585

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