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Revenue from Contracts with Customers (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2017
Service charges on deposits
Revenue from External Customer [Line Items]
Service charges on deposits	$ 4,904	$ 4,581	$ 4,518
ATM and debit card interchange transaction fees
Revenue from External Customer [Line Items]
Service charges on deposits	4,036	3,570	3,343
Escrow fees
Revenue from External Customer [Line Items]
Service charges on deposits	197	211	242
Fee income from non-deposit investment sales
Revenue from External Customer [Line Items]
Service charges on deposits	$ 46	$ 109	$ 63

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+ References

No definition available.

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- Definition

Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045

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