Loans and Allowance for Credit Losses - Performing TDRs Segregated by Class (Details)	9 Months Ended	12 Months Ended
Mar. 31, 2024 USD ($) loan	Jun. 30, 2023 USD ($) loan
Number of modifications \| loan	2
Recorded Investment, Loan modifications	$ 0
Recorded Investment	$ 859,000
Performing Loans
Number of modifications \| loan		22
Recorded Investment, Loan modifications		$ 29,765,000
Residential Real Estate \| Performing Loans
Number of modifications \| loan		10
Recorded Investment, Loan modifications		$ 3,438,000
Commercial Real Estate \| Performing Loans
Number of modifications \| loan		6
Recorded Investment, Loan modifications		$ 24,017,000
Commercial loans
Number of modifications \| loan	2
Recorded Investment	$ 859,000
Commercial loans \| Performing Loans
Number of modifications \| loan		6
Recorded Investment, Loan modifications		$ 2,310,000

Number of performing financing receivables that have been modified by troubled debt restructurings.

No definition available.

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Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Accumulated amortized cost excluding accrued interest, of financing receivable modified for debtor experiencing financial difficulty.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-42

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amortized cost excluding accrued interest, of financing receivable modified during period for debtor experiencing financial difficulty.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-42

+ Details

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- Details

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- Details

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- Details

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- Details

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