Loans Receivable And Allowance For Loan Losses: Schedule of Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	$ 9,889	$ 10,322	$ 9,924	$ 10,427
Provision for /(Recapture of)	0	0	0	0
Charge- offs	(58)	(52)	(135)	(186)
Recoveries	212	112	254	141
Allowance for loan losses, Ending Allowance	10,043	10,382	10,043	10,382
Mortgage loans, one-to-four family
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	1,420	1,504	1,480	1,650
Provision for /(Recapture of)	(147)	24	(184)	(23)
Charge- offs	(2)	(39)	(28)	(157)
Recoveries	52	107	55	126
Allowance for loan losses, Ending Allowance	1,323	1,596	1,323	1,596
Mortgage loans, multi-family
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	373	368	392	387
Provision for /(Recapture of)	(58)	(66)	(77)	(85)
Charge- offs	0	0	0	0
Recoveries	0	0	0	0
Allowance for loan losses, Ending Allowance	315	302	315	302
Mortgage loans, commercial
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	3,898	3,646	4,065	4,836
Provision for /(Recapture of)	239	(45)	99	(1,235)
Charge- offs	(54)	0	(81)	0
Recoveries	0	0	0	0
Allowance for loan losses, Ending Allowance	4,083	3,601	4,083	3,601
Mortgage loans, construction - custom and owner/builder
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	555	460	451	450
Provision for /(Recapture of)	(13)	15	91	25
Charge- offs	0	0	0	0
Recoveries	0	0	0	0
Allowance for loan losses, Ending Allowance	542	475	542	475
Mortgage loans, construction - speculative one-to-four family
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	122	50	123	52
Provision for /(Recapture of)	(28)	14	(29)	12
Charge- offs	0	0	0	0
Recoveries	2	0	2	0
Allowance for loan losses, Ending Allowance	96	64	96	64
Mortgage loans, construction – commercial
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	486	28	426	78
Provision for /(Recapture of)	131	9	191	(41)
Charge- offs	0	0	0	0
Recoveries	0	0	0	0
Allowance for loan losses, Ending Allowance	617	37	617	37
Mortgage loans, construction - Multi-family
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	336	75	283	25
Provision for /(Recapture of)	(77)	54	(55)	104
Charge- offs	0		0
Recoveries	150	0	181	0
Allowance for loan losses, Ending Allowance	409	129	409	129
Mortgage loans, land
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	923	2,817	1,021	1,434
Provision for /(Recapture of)	24	(67)	(72)	1,312
Charge- offs	0		(8)
Recoveries	7	3	13	11
Allowance for loan losses, Ending Allowance	954	2,753	954	2,753
Consumer loans, home equity and second mortgage
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	1,102	801	1,073	879
Provision for /(Recapture of)	(81)	5	(39)	(62)
Charge- offs	0	(9)	(13)	(20)
Recoveries	0	0	0	0
Allowance for loan losses, Ending Allowance	1,021	797	1,021	797
Consumer loans, other
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	161	159	187	176
Provision for /(Recapture of)	3	34	(21)	17
Charge- offs	(2)	(4)	(5)	(5)
Recoveries	0	1	1	2
Allowance for loan losses, Ending Allowance	162	190	162	190
Commercial business loans
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	513	414	423	460
Provision for /(Recapture of)	7	23	96	(24)
Charge- offs	0	0	0	0
Recoveries	1	1	2	2
Allowance for loan losses, Ending Allowance	$ 521	438	$ 521	438
Mortgage loans, construction - land development
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Charge- offs		0		0
Land and Land Improvements [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Charge- offs		$ 0		$ (4)

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

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

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

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

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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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