Loans Receivable And Allowance For Loan Losses: Schedule of Allowance for Loan Losses (Details) - USD ($) $ in Thousands	12 Months Ended
Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2013
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	$ 10,427	$ 11,136
Provision/(Credit)	1,525	0	$ 2,925
Charge-offs	(424)	(1,896)	(4,100)
Recoveries	1,446	1,187	486
Allowance for loan losses, Ending Allowance	9,924	10,427	11,136
Mortgage loans, one-to-four family
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	1,650	1,449
Provision/(Credit)	214	1,113	565
Charge-offs	(220)	(1,106)	(769)
Recoveries	264	194	95
Allowance for loan losses, Ending Allowance	1,480	1,650	1,449
Mortgage loans, multi-family
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	387	749
Provision/(Credit)	2	(362)	(407)
Charge-offs	0	0	0
Recoveries	3	0	0
Allowance for loan losses, Ending Allowance	392	387	749
Mortgage loans, commercial
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	4,836	5,275
Provision/(Credit)	775	20	1,640
Charge-offs	0	(463)	(667)
Recoveries	4	4	55
Allowance for loan losses, Ending Allowance	4,065	4,836	5,275
Mortgage loans, construction - custom and owner/builder
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	450	262
Provision/(Credit)	1	188	(124)
Charge-offs	0	0	(26)
Recoveries	0	0	26
Allowance for loan losses, Ending Allowance	451	450	262
Mortgage loans, construction - speculative one-to-four family
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	52	96
Provision/(Credit)	69	(44)	(32)
Charge-offs	0	0	0
Recoveries	2	0	0
Allowance for loan losses, Ending Allowance	123	52	96
Construction - commercial
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	78	56
Provision/(Credit)	(348)	22	(373)
Charge-offs	0	0	0
Recoveries	0	0	0
Allowance for loan losses, Ending Allowance	426	78	56
Mortgage loans, construction - multi-family
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	25	0
Provision/(Credit)	867	(226)	116
Charge-offs	0	0	(116)
Recoveries	1,125	251	0
Allowance for loan losses, Ending Allowance	283	25	0
Mortgage loans, construction - land development
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	0	0
Provision/(Credit)		(287)	(129)
Charge-offs		0	(17)
Recoveries		287	146
Allowance for loan losses, Ending Allowance		0	0
Mortgage loans, land
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	1,434	1,940
Provision/(Credit)	305	(664)	1,801
Charge-offs	(145)	(260)	(2,307)
Recoveries	37	418	54
Allowance for loan losses, Ending Allowance	1,021	1,434	1,940
Consumer loans, home equity and second mortgage
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	879	782
Provision/(Credit)	242	137	202
Charge-offs	(50)	(47)	(184)
Recoveries	2	7	5
Allowance for loan losses, Ending Allowance	1,073	879	782
Consumer loans, other
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	176	200
Provision/(Credit)	16	(20)	(40)
Charge-offs	(9)	(6)	(14)
Recoveries	4	2	0
Allowance for loan losses, Ending Allowance	187	176	200
Commercial business loans
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for loan losses, Beginning Allowance	460	327
Provision/(Credit)	42	123	(294)
Charge-offs	0	(14)	0
Recoveries	5	24	105
Allowance for loan losses, Ending Allowance	$ 423	$ 460	$ 327

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.

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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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- 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

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-Name Accounting Standards Codification

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-Name Regulation S-X (SX)

-Number 210

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