Loans and Allowance for Credit Losses - Nonaccrual Loans (Details) - USD ($)	Mar. 31, 2023	Jun. 30, 2022
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	$ 7,397,000	$ 4,118,000
Nonaccrual loans individually evaluated for which no ACL was recorded	0
Residential Real Estate
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	1,175,000	1,647,000
Construction Real Estate
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	368,000
Commercial Real Estate
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	4,741,000	2,259,000
Consumer loans
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	183,000	73,000
Commercial loans
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	$ 930,000	$ 139,000