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Loans Receivable (Troubled debt restructurings, Rolling Twelve Months) (Details) $ in Thousands	12 Months Ended
	Sep. 30, 2017 USD ($) number	Sep. 30, 2016 USD ($) number
Mortgage Loan [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | number	28	23
Recored Investment | $	$ 2,663	$ 3,437
Commercial Loan [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | number	8	2
Recored Investment | $	$ 868	$ 157
Consumer Loan [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | number	22	7
Recored Investment | $	$ 248	$ 68
Auto [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | number	0	0
Recored Investment | $	$ 0	$ 0

X

- Definition

[2012] Number of financing receivables that have been modified by troubled debt restructurings for the past twelve months.

+ References

No definition available.

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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X

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=25495931&loc=d3e18845-111554

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Recorded Investment
-URI http://asc.fasb.org/extlink&oid=65880944

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