Loans Receivable And Allowance For Loan Losses: Impaired Financing Receivables (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2011
Recorded Investment
With no related allowance recorded	$ 12,453	$ 16,832	$ 31,863
With an allowance recorded	25,646	23,973	16,667
Total	38,099	40,805	48,530
Unpaid Principal Balance (Loan Balance Plus Charge Off)
With no related allowance recorded	21,377	26,962	43,488
With an allowance recorded	26,419	24,160	18,133
Total	47,796	51,122	61,621
Related Allowance	(3,076)	(2,902)	(2,289)
YTD Average Recorded Investment
With no related allowance recorded	16,697	24,828	31,594
With an allowance recorded	22,478	22,186	15,036
Total	39,175	47,014	46,630
YTD Interest Income Recognized
With no related allowance recorded	352	622	1,210
With an allowance recorded	990	762	844
Total	1,342	1,384	2,054
YTD Cash Basis Interest Income Recognized
With no related allowance recorded	291	411	667
With an allowance recorded	773	515	632
Total	1,064	926	1,299
Mortgage loans, one-to-four family
Recorded Investment
With no related allowance recorded	5,342	1,510	2,092
With an allowance recorded	3,642	3,772	1,609
Total	8,984	5,282	3,701
Unpaid Principal Balance (Loan Balance Plus Charge Off)
With no related allowance recorded	5,775	1,605	2,387
With an allowance recorded	3,726	3,772	1,609
Total	9,501	5,377	3,996
Related Allowance	(600)	(678)	(45)
YTD Average Recorded Investment
With no related allowance recorded	2,661	1,838	2,908
With an allowance recorded	4,397	2,520	768
Total	7,058	4,358	3,676
YTD Interest Income Recognized
With no related allowance recorded	18	20	30
With an allowance recorded	91	81	47
Total	109	101	77
YTD Cash Basis Interest Income Recognized
With no related allowance recorded	13	16	22
With an allowance recorded	68	62	38
Total	81	78	60
Mortgage loans, multi-family
Recorded Investment
With no related allowance recorded	0	0	0
With an allowance recorded	5,184	6,879	5,482
Total	5,184	6,879	5,482
Unpaid Principal Balance (Loan Balance Plus Charge Off)
With no related allowance recorded	982	982	982
With an allowance recorded	5,184	6,879	5,482
Total	6,166	7,861	6,464
Related Allowance	(334)	(711)	(632)
YTD Average Recorded Investment
With no related allowance recorded	473	0	681
With an allowance recorded	5,960	6,618	4,798
Total	6,433	6,618	5,479
YTD Interest Income Recognized
With no related allowance recorded	3	1	0
With an allowance recorded	301	294	298
Total	304	295	298
YTD Cash Basis Interest Income Recognized
With no related allowance recorded	3	1	0
With an allowance recorded	230	189	222
Total	233	190	222
Mortgage loans, commercial
Recorded Investment
With no related allowance recorded	4,879	7,596	18,137
With an allowance recorded	14,631	9,596	1,185
Total	19,510	17,192	19,322
Unpaid Principal Balance (Loan Balance Plus Charge Off)
With no related allowance recorded	8,005	8,664	19,279
With an allowance recorded	15,297	9,596	1,185
Total	23,302	18,260	20,464
Related Allowance	(1,763)	(667)	(255)
YTD Average Recorded Investment
With no related allowance recorded	8,781	14,491	14,623
With an allowance recorded	9,052	5,043	1,409
Total	17,833	19,534	16,032
YTD Interest Income Recognized
With no related allowance recorded	322	543	1,060
With an allowance recorded	526	60	50
Total	848	603	1,110
YTD Cash Basis Interest Income Recognized
With no related allowance recorded	267	348	573
With an allowance recorded	420	39	118
Total	687	387	691
Mortgage loans, construction - custom and owner/builder
Recorded Investment
With no related allowance recorded	0	208	209
With an allowance recorded	0	101	111
Total	0	309	320
Unpaid Principal Balance (Loan Balance Plus Charge Off)
With no related allowance recorded	0	208	209
With an allowance recorded	0	101	111
Total	0	309	320
Related Allowance	0	(15)	(11)
YTD Average Recorded Investment
With no related allowance recorded	97	209	303
With an allowance recorded	60	106	45
Total	157	315	348
YTD Interest Income Recognized
With no related allowance recorded	0	0	7
With an allowance recorded	0	0	2
Total	0	0	9
YTD Cash Basis Interest Income Recognized
With no related allowance recorded	0	0	1
With an allowance recorded	0	0	2
Total	0	0	3
Mortgage loans, construction - speculative one-to-four family
Recorded Investment
With no related allowance recorded	0	327	0
With an allowance recorded	687	700	700
Total	687	1,027	700
Unpaid Principal Balance (Loan Balance Plus Charge Off)
With no related allowance recorded	0	327	0
With an allowance recorded	687	700	700
Total	687	1,027	700
Related Allowance	(88)	(109)	(37)
YTD Average Recorded Investment
With no related allowance recorded	65	65	502
With an allowance recorded	695	700	1,042
Total	760	765	1,544
YTD Interest Income Recognized
With no related allowance recorded	0	0	7
With an allowance recorded	29	29	50
Total	29	29	57
YTD Cash Basis Interest Income Recognized
With no related allowance recorded	0	0	7
With an allowance recorded	16	20	37
Total	16	20	44
Construction - commercial
Recorded Investment
With no related allowance recorded		0
With an allowance recorded		0	5,435
Total		0	5,435
Unpaid Principal Balance (Loan Balance Plus Charge Off)
With no related allowance recorded		2,066
With an allowance recorded		0	6,879
Total		2,066	6,879
Related Allowance		0	(738)
YTD Average Recorded Investment
With no related allowance recorded		0
With an allowance recorded		3,248	3,537
Total		3,248	3,537
YTD Interest Income Recognized
With no related allowance recorded		14
With an allowance recorded		230	273
Total		244	273
YTD Cash Basis Interest Income Recognized
With no related allowance recorded		14
With an allowance recorded		146	123
Total		160	123
Mortgage loans, construction - multi-family
Recorded Investment
With no related allowance recorded	143	345	632
With an allowance recorded	0	0	0
Total	143	345	632
Unpaid Principal Balance (Loan Balance Plus Charge Off)
With no related allowance recorded	608	810	1,135
With an allowance recorded	0	0	0
Total	608	810	1,135
Related Allowance	0	0	0
YTD Average Recorded Investment
With no related allowance recorded	293	338	1,287
With an allowance recorded	0	74	65
Total	293	412	1,352
YTD Interest Income Recognized
With no related allowance recorded	0	0	4
With an allowance recorded	0	0	0
Total	0	0	4
YTD Cash Basis Interest Income Recognized
With no related allowance recorded	0	0	4
With an allowance recorded	0	0	0
Total	0	0	4
Mortgage loans, construction - land development
Recorded Investment
With no related allowance recorded	515	589	1,882
With an allowance recorded	0
Total	515	589	1,882
Unpaid Principal Balance (Loan Balance Plus Charge Off)
With no related allowance recorded	3,279	3,497	7,179
With an allowance recorded	0
Total	3,279	3,497	7,179
Related Allowance	0	0	0
YTD Average Recorded Investment
With no related allowance recorded	534	1,089	2,920
With an allowance recorded	0
Total	534	1,089	2,920
YTD Interest Income Recognized
With no related allowance recorded	0	14	5
With an allowance recorded	0
Total	0	14	5
YTD Cash Basis Interest Income Recognized
With no related allowance recorded	0	14	0
With an allowance recorded	0
Total	0	14	0
Mortgage loans, land
Recorded Investment
With no related allowance recorded	1,188	5,989	8,198
With an allowance recorded	1,203	2,624	1,799
Total	2,391	8,613	9,997
Unpaid Principal Balance (Loan Balance Plus Charge Off)
With no related allowance recorded	2,133	8,247	11,533
With an allowance recorded	1,226	2,811	1,821
Total	3,359	11,058	13,354
Related Allowance	(234)	(686)	(560)
YTD Average Recorded Investment
With no related allowance recorded	3,519	6,279	7,883
With an allowance recorded	1,962	3,307	2,946
Total	5,481	9,586	10,829
YTD Interest Income Recognized
With no related allowance recorded	9	28	69
With an allowance recorded	27	37	114
Total	36	65	183
YTD Cash Basis Interest Income Recognized
With no related allowance recorded	8	16	42
With an allowance recorded	27	36	83
Total	35	52	125
Consumer loans, home equity and second mortgage
Recorded Investment
With no related allowance recorded	380	261	669
With an allowance recorded	299	301	345
Total	679	562	1,014
Unpaid Principal Balance (Loan Balance Plus Charge Off)
With no related allowance recorded	556	383	719
With an allowance recorded	299	301	345
Total	855	684	1,064
Related Allowance	(57)	(36)	(10)
YTD Average Recorded Investment
With no related allowance recorded	266	482	430
With an allowance recorded	352	515	425
Total	618	997	855
YTD Interest Income Recognized
With no related allowance recorded	0	0	26
With an allowance recorded	16	31	10
Total	16	31	36
YTD Cash Basis Interest Income Recognized
With no related allowance recorded	0	0	16
With an allowance recorded	12	23	9
Total	12	23	25
Consumer loans, other
Recorded Investment
With no related allowance recorded	6	7	0
Total	6	7	1
Unpaid Principal Balance (Loan Balance Plus Charge Off)
With no related allowance recorded	6	7	0
Total	6	7	1
Related Allowance	0	0	0
YTD Average Recorded Investment
With no related allowance recorded	8	5	13
Total	8	5	14
YTD Interest Income Recognized
With no related allowance recorded	0	0	0
Total	0	0	0
YTD Cash Basis Interest Income Recognized
With no related allowance recorded	0	0	0
Total	0	0	0
Commercial business loans
Recorded Investment
With no related allowance recorded	0	0	44
With an allowance recorded	0	0	1
Total	0	0	44
Unpaid Principal Balance (Loan Balance Plus Charge Off)
With no related allowance recorded	33	166	65
With an allowance recorded	0	0	1
Total	33	166	65
Related Allowance	0	0	(1)
YTD Average Recorded Investment
With no related allowance recorded	0	32	44
With an allowance recorded	0	55	1
Total	0	87	44
YTD Interest Income Recognized
With no related allowance recorded	0	2	2
With an allowance recorded	0	0	0
Total	0	2	2
YTD Cash Basis Interest Income Recognized
With no related allowance recorded	0	2	2
With an allowance recorded	0	0	0
Total	$ 0	$ 2	$ 2