Loans and Allowance for Credit Losses on Loans - Activity and Allocation of Allowance for Loan Losses (Details) - USD ($) $ in Thousands	12 Months Ended
Jun. 30, 2025	Jun. 30, 2024
Loans and Allowance for Credit Losses on Loans [Abstract]
Balance, beginning of period	$ 19,244	$ 21,212
Charge-offs	(514)	(1,633)
Recoveries	165	211
Provision	1,251	786
Balance, end of period	20,146	19,244
Commercial Portfolio [Member]
Loans and Allowance for Credit Losses on Loans [Abstract]
Balance, beginning of period	2,077	3,201
Charge-offs	(66)	(1,152)
Recoveries	40	66
Provision	227	(159)
Balance, end of period	2,278	2,077
Adoption of ASU No. 2016-13 [Member] \| Cumulative Effect Adjustment for ASU Implementation [Member]
Loans and Allowance for Credit Losses on Loans [Abstract]
Balance, beginning of period		(1,332)
Adoption of ASU No. 2016-13 [Member] \| Cumulative Effect Adjustment for ASU Implementation [Member] \| Commercial Portfolio [Member]
Loans and Allowance for Credit Losses on Loans [Abstract]
Balance, beginning of period		121
Residential Real Estate [Member] \| Residential Portfolio [Member]
Loans and Allowance for Credit Losses on Loans [Abstract]
Balance, beginning of period	4,237	2,794
Charge-offs	(44)	0
Recoveries	2	0
Provision	418	261
Balance, end of period	4,613	4,237
Residential Real Estate [Member] \| Adoption of ASU No. 2016-13 [Member] \| Cumulative Effect Adjustment for ASU Implementation [Member] \| Residential Portfolio [Member]
Loans and Allowance for Credit Losses on Loans [Abstract]
Balance, beginning of period		1,182
Real Estate [Member] \| Commercial Real Estate Portfolio [Member]
Loans and Allowance for Credit Losses on Loans [Abstract]
Balance, beginning of period	12,218	14,839
Charge-offs	(5)	0
Recoveries	4	3
Provision	397	265
Balance, end of period	12,614	12,218
Real Estate [Member] \| Adoption of ASU No. 2016-13 [Member] \| Cumulative Effect Adjustment for ASU Implementation [Member] \| Commercial Real Estate Portfolio [Member]
Loans and Allowance for Credit Losses on Loans [Abstract]
Balance, beginning of period		(2,889)
Home Equity [Member] \| Consumer Portfolio [Member]
Loans and Allowance for Credit Losses on Loans [Abstract]
Balance, beginning of period	212	46
Charge-offs	(13)	0
Recoveries	0	0
Provision	61	49
Balance, end of period	260	212
Home Equity [Member] \| Adoption of ASU No. 2016-13 [Member] \| Cumulative Effect Adjustment for ASU Implementation [Member] \| Consumer Portfolio [Member]
Loans and Allowance for Credit Losses on Loans [Abstract]
Balance, beginning of period		117
Consumer [Member] \| Consumer Portfolio [Member]
Loans and Allowance for Credit Losses on Loans [Abstract]
Balance, beginning of period	500	332
Charge-offs	(386)	(481)
Recoveries	119	142
Provision	148	370
Balance, end of period	$ 381	500
Consumer [Member] \| Adoption of ASU No. 2016-13 [Member] \| Cumulative Effect Adjustment for ASU Implementation [Member] \| Consumer Portfolio [Member]
Loans and Allowance for Credit Losses on Loans [Abstract]
Balance, beginning of period		$ 137

Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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Amount of increase in allowance for credit loss on financing receivable from recovery.

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Amount of writeoff of financing receivable, charged against allowance for credit loss.

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Amount of credit loss expense (reversal of expense) for financing receivable.

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