Loans and Allowance for Credit Losses - Performing TDRs Segregated by Class (Details) - Performing Loans $ in Thousands	Mar. 31, 2023 USD ($) loan	Jun. 30, 2022 USD ($) loan
Number of modifications \| loan	22	27
Recorded Investment, TDRs \| $	$ 30,359	$ 30,606
Residential Real Estate
Number of modifications \| loan	10	11
Recorded Investment, TDRs \| $	$ 3,383	$ 3,625
Commercial Real Estate
Number of modifications \| loan	6	8
Recorded Investment, TDRs \| $	$ 24,241	$ 25,132
Commercial loans
Number of modifications \| loan	6	8
Recorded Investment, TDRs \| $	$ 2,735	$ 1,849

Amount of financing receivable modified as troubled debt restructuring.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI https://asc.fasb.org/extlink&oid=121585226&loc=d3e18845-111554

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant