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Loans Receivable And Allowance For Loan Losses: Troubled Debt Restructurings on Financing Receivables (Details) - USD ($)	Dec. 31, 2015	Sep. 30, 2015
Financing Receivable, Modifications [Line Items]
Loans accounted for on a non-accrual basis	$ 4,831,000	$ 6,040,000
Accruing loans which are contractually past due 90 days or more	285,000	151,000
Total of non-accrual and 90 days past due loans	5,116,000	6,191,000
Non-accrual investment securities	891,000	932,000
OREO and other repossessed assets, net	7,667,000	7,854,000
Total non-performing assets	13,674,000	14,977,000
Troubled debt restructured loans on accrual status	$ 9,200,000	$ 13,718,000
Non-accrual and 90 days or more past due loans as a percentage of loans receivable	0.80%	1.00%
Non-accrual and 90 days or more past due loans as a percentage of total assets	0.61%	0.76%
Non-performing assets as a percentage of total assets	1.63%	1.84%
Loans receivable	$ 635,734,000	$ 617,252,000
Total assets	837,379,000	815,815,000
Loans and Leases Receivable, Impaired, Commitment to Lend	0
Allowance for Loan Losses Allocated to Troubled Debt Restructured Loans	330,000	310,000
Accruing
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loans on accrual status	7,971,000	12,485,000
Non-Accrual
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loans on accrual status	1,200,000	1,233,000
Mortgage loans, one-to-four family
Financing Receivable, Modifications [Line Items]
Loans accounted for on a non-accrual basis	2,694,000	2,368,000
Mortgage loans, one-to-four family | Accruing
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loans on accrual status	1,571,000	1,929,000
Mortgage loans, one-to-four family | Non-Accrual
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loans on accrual status	825,000	826,000
Mortgage loans, multi-family
Financing Receivable, Modifications [Line Items]
Loans accounted for on a non-accrual basis	0	760,000
Mortgage loans, multi-family | Accruing
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loans on accrual status		3,277,000
Mortgage loans, multi-family | Non-Accrual
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loans on accrual status		0
Mortgage loans, commercial
Financing Receivable, Modifications [Line Items]
Loans accounted for on a non-accrual basis	1,184,000	1,016,000
Mortgage loans, commercial | Accruing
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loans on accrual status	5,366,000	6,237,000
Mortgage loans, commercial | Non-Accrual
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loans on accrual status	0	0
Mortgage loans, construction - custom and owner/builder
Financing Receivable, Modifications [Line Items]
Loans accounted for on a non-accrual basis	0	0
Mortgage loans, construction - speculative one-to-four family
Financing Receivable, Modifications [Line Items]
Loans accounted for on a non-accrual basis	0	0
Mortgage loans, construction - Multi-family
Financing Receivable, Modifications [Line Items]
Loans accounted for on a non-accrual basis	0	0
Mortgage loans, land
Financing Receivable, Modifications [Line Items]
Loans accounted for on a non-accrual basis	546,000	1,558,000
Mortgage loans, land | Accruing
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loans on accrual status	740,000	747,000
Mortgage loans, land | Non-Accrual
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loans on accrual status	252,000	255,000
Consumer loans, home equity and second mortgage
Financing Receivable, Modifications [Line Items]
Loans accounted for on a non-accrual basis	300,000	303,000
Consumer loans, home equity and second mortgage | Accruing
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loans on accrual status	294,000	295,000
Consumer loans, home equity and second mortgage | Non-Accrual
Financing Receivable, Modifications [Line Items]
Troubled debt restructured loans on accrual status	152,000	152,000
Consumer loans, other
Financing Receivable, Modifications [Line Items]
Loans accounted for on a non-accrual basis	$ 34,000	$ 35,000

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Total of other real estate owned, repossessed assets, and non-performing loans

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Total of loans that are 90 or more days past due, and in loans non-accruing.

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Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings.

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Recorded investment in financing receivables that are 90 days or more past due and still accruing.

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Recorded investment in financing receivables that are on nonaccrual status as of the balance sheet date.

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Reflects the unfunded portion of contractual agreements to lend funds to borrowers for loans whose terms have been modified by troubled debt restructuring.

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Reflects the carrying amount of loans deemed to be questionable as to collection on which no interest is continuing to be recognized.

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Reflects the percentage derived from dividing impaired loans on which interest has ceased to be accrued by total loans.

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Carrying amount as of the balance sheet date of other real estate and foreclosed assets. Other real estate may include real estate investments, real estate loans that qualify as investments in real estate, and premises that are no longer used in operations may also be included in real estate owned. Foreclosed assets include all assets obtained in full or partial satisfaction of a debt arrangement through foreclosure proceedings.

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