Loans Receivable And Allowance For Loan Losses: Financing Receivable Credit Quality Indicators (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Sep. 30, 2012
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	$ 558,084	$ 552,075
Pass
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	492,009	471,879
Watch
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	14,933	14,170
Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	29,141	32,944
Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	22,001	33,082
Mortgage loans, one-to-four family
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	104,784	106,979
Mortgage loans, one-to-four family | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	91,821	93,668
Mortgage loans, one-to-four family | Watch
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	4,353	4,000
Mortgage loans, one-to-four family | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	1,301	4,343
Mortgage loans, one-to-four family | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	7,309	4,968
Mortgage loans, multi-family
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	48,781	47,521
Mortgage loans, multi-family | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	39,253	35,703
Mortgage loans, multi-family | Watch
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	140	107
Mortgage loans, multi-family | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	8,599	10,220
Mortgage loans, multi-family | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	789	1,491
Mortgage loans, commercial
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	290,240	256,254
Mortgage loans, commercial | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	261,469	228,036
Mortgage loans, commercial | Watch
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	3,337	1,722
Mortgage loans, commercial | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	16,624	11,515
Mortgage loans, commercial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	8,810	14,981
Mortgage loans, construction - custom and owner/builder
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	19,988	20,468
Mortgage loans, construction - custom and owner/builder | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	19,915	17,621
Mortgage loans, construction - custom and owner/builder | Watch
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Mortgage loans, construction - custom and owner/builder | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	2,538
Mortgage loans, construction - custom and owner/builder | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	73	309
Mortgage loans, construction - speculative one-to-four family
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	718	1,522
Mortgage loans, construction - speculative one-to-four family | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	26	304
Mortgage loans, construction - speculative one-to-four family | Watch
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	692	191
Mortgage loans, construction - speculative one-to-four family | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	700
Mortgage loans, construction - speculative one-to-four family | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	327
Mortgage loans, construction – commercial
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	3,589	17,157
Mortgage loans, construction – commercial | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	3,589	17,157
Mortgage loans, construction – commercial | Watch
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Mortgage loans, construction – commercial | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Mortgage loans, construction – commercial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Mortgage loans, construction - Multi-family
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	289	345
Mortgage loans, construction - Multi-family | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Mortgage loans, construction - Multi-family | Watch
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Mortgage loans, construction - Multi-family | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Mortgage loans, construction - Multi-family | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	289	345
Mortgage loans, construction - land development
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	516	589
Mortgage loans, construction - land development | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Mortgage loans, construction - land development | Watch
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Mortgage loans, construction - land development | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Mortgage loans, construction - land development | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	516	589
Mortgage loans, land
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	31,673	39,655
Mortgage loans, land | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	21,023	22,700
Mortgage loans, land | Watch
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	5,041	5,788
Mortgage loans, land | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	2,266	2,554
Mortgage loans, land | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	3,343	8,613
Consumer loans, home equity and second mortgage
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	31,936	32,814
Consumer loans, home equity and second mortgage | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	30,040	29,777
Consumer loans, home equity and second mortgage | Watch
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	786	1,488
Consumer loans, home equity and second mortgage | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	244	788
Consumer loans, home equity and second mortgage | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	866	761
Consumer loans, other
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	6,013	6,183
Consumer loans, other | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	5,967	6,136
Consumer loans, other | Watch
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	40	40
Consumer loans, other | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Consumer loans, other | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	6	7
Commercial business loans
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	19,557	22,588
Commercial business loans | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	18,906	20,777
Commercial business loans | Watch
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	544	834
Commercial business loans | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	107	286
Commercial business loans | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	$ 0	$ 691