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Loans Receivable And Allowance For Loan Losses: Past Due Status of Loans (Details) - USD ($) $ in Thousands		Mar. 31, 2016	Sep. 30, 2015
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		$ 3,667	$ 7,168
Loans receivable, Non-Accrual	[1]	3,391	6,040
Loans receivable, Current		631,275	609,226
Loans receivable		634,942	616,394
Mortgage loans, one-to-four family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		1,365	2,793
Loans receivable, Non-Accrual	[1]	1,365	2,368
Loans receivable, Current		116,100	113,871
Loans receivable		117,465	116,664
Mortgage loans, multi-family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	760
Loans receivable, Non-Accrual	[1]	0	760
Loans receivable, Current		42,666	51,562
Loans receivable		42,666	52,322
Mortgage loans, commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		1,129	1,016
Loans receivable, Non-Accrual	[1]	1,129	1,016
Loans receivable, Current		289,688	290,200
Loans receivable		290,817	291,216
Mortgage loans, construction - custom and owner/builder
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	345
Loans receivable, Non-Accrual	[1]	0	0
Loans receivable, Current		41,312	35,847
Loans receivable		41,312	36,192
Mortgage loans, construction - speculative one-to-four family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Loans receivable, Non-Accrual	[1]	0	0
Loans receivable, Current		2,956	3,781
Loans receivable		2,956	3,781
Mortgage loans, construction – commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Loans receivable, Non-Accrual	[1]	0	0
Loans receivable, Current		16,902	12,200
Loans receivable		16,902	12,200
Mortgage loans, construction - Multi-family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Loans receivable, Non-Accrual	[1]	0	0
Loans receivable, Current		13,623	5,290
Loans receivable		13,623	5,290
Mortgage loans, land
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		515	1,605
Loans receivable, Non-Accrual	[1]	451	1,558
Loans receivable, Current		23,807	24,535
Loans receivable		24,322	26,140
Consumer loans, home equity and second mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		625	614
Loans receivable, Non-Accrual	[1]	413	303
Loans receivable, Current		36,519	33,543
Loans receivable		37,144	34,157
Consumer loans, other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		33	35
Loans receivable, Non-Accrual	[1]	33	35
Loans receivable, Current		4,347	4,634
Loans receivable		4,380	4,669
Commercial business loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Loans receivable, Non-Accrual	[1]	0	0
Loans receivable, Current		43,355	33,763
Loans receivable		43,355	33,763
30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		93	161
30 to 59 Days Past Due | Mortgage loans, one-to-four family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
30 to 59 Days Past Due | Mortgage loans, multi-family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
30 to 59 Days Past Due | Mortgage loans, commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
30 to 59 Days Past Due | Mortgage loans, construction - custom and owner/builder
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
30 to 59 Days Past Due | Mortgage loans, construction - speculative one-to-four family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
30 to 59 Days Past Due | Mortgage loans, construction – commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
30 to 59 Days Past Due | Mortgage loans, construction - Multi-family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
30 to 59 Days Past Due | Mortgage loans, land
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		64	15
30 to 59 Days Past Due | Consumer loans, home equity and second mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		29	146
30 to 59 Days Past Due | Consumer loans, other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
30 to 59 Days Past Due | Commercial business loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		48	816
60 to 89 Days Past Due | Mortgage loans, one-to-four family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	425
60 to 89 Days Past Due | Mortgage loans, multi-family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
60 to 89 Days Past Due | Mortgage loans, commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
60 to 89 Days Past Due | Mortgage loans, construction - custom and owner/builder
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	345
60 to 89 Days Past Due | Mortgage loans, construction - speculative one-to-four family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
60 to 89 Days Past Due | Mortgage loans, construction – commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
60 to 89 Days Past Due | Mortgage loans, construction - Multi-family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
60 to 89 Days Past Due | Mortgage loans, land
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	32
60 to 89 Days Past Due | Consumer loans, home equity and second mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		48	14
60 to 89 Days Past Due | Consumer loans, other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
60 to 89 Days Past Due | Commercial business loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Past Due 90 Days or More and Still Accruing
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		135	151
Past Due 90 Days or More and Still Accruing | Mortgage loans, one-to-four family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Past Due 90 Days or More and Still Accruing | Mortgage loans, multi-family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Past Due 90 Days or More and Still Accruing | Mortgage loans, commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Past Due 90 Days or More and Still Accruing | Mortgage loans, construction - custom and owner/builder
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Past Due 90 Days or More and Still Accruing | Mortgage loans, construction - speculative one-to-four family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Past Due 90 Days or More and Still Accruing | Mortgage loans, construction – commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Past Due 90 Days or More and Still Accruing | Mortgage loans, construction - Multi-family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Past Due 90 Days or More and Still Accruing | Mortgage loans, land
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Past Due 90 Days or More and Still Accruing | Consumer loans, home equity and second mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		135	151
Past Due 90 Days or More and Still Accruing | Consumer loans, other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		0	0
Past Due 90 Days or More and Still Accruing | Commercial business loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Total Past Due		$ 0	$ 0
[1] Includes non-accrual loans past due 90 days or more and other loans classified as non-accrual.

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+ References

No definition available.

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- Definition

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7A
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953401-111524

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- Definition

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Recorded Investment
-URI http://asc.fasb.org/extlink&oid=65880944

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5111-111524

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- Definition

Recorded Investment in financing receivables that are past due at the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Recorded Investment
-URI http://asc.fasb.org/extlink&oid=65880944

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7A
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953401-111524

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