Loans Receivable And Allowance For Loan Losses: Schedule of Troubled debt restructured loans (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loan	$ 22,604	$ 23,504
Accruing
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loan	18,573	13,410
Non-Accrual
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loan	4,031	10,094
Mortgage loans, one-to-four family
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loan	2,197	1,900
Mortgage loans, one-to-four family | Accruing
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loan	1,999	1,900
Mortgage loans, one-to-four family | Non-Accrual
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loan	198	0
Mortgage loans, multi-family
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loan	5,184	5,430
Mortgage loans, multi-family | Accruing
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loan	5,184	5,430
Mortgage loans, multi-family | Non-Accrual
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loan	0	0
Mortgage loans, construction - speculative one-to-four family
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loan	687	700
Mortgage loans, construction - speculative one-to-four family | Accruing
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loan	687	700
Mortgage loans, construction - speculative one-to-four family | Non-Accrual
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loan	0	0
Mortgage loans, commercial
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loan	11,734	9,941
Mortgage loans, commercial | Accruing
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loan	10,160	5,079
Mortgage loans, commercial | Non-Accrual
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loan	1,574	4,862
Mortgage loans, construction - land development
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loan	515	526
Mortgage loans, construction - land development | Accruing
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loan	0	0
Mortgage loans, construction - land development | Non-Accrual
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loan	515	526
Mortgage loans, land
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loan	1,808	4,445
Mortgage loans, land | Accruing
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loan	244	0
Mortgage loans, land | Non-Accrual
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loan	1,564	4,445
Consumer loans, home equity and second mortgage
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loan	479	562
Consumer loans, home equity and second mortgage | Accruing
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loan	299	301
Consumer loans, home equity and second mortgage | Non-Accrual
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loan	$ 180	$ 261