Loans and Allowance for Credit Losses on Loans, Allowance for Credit Losses on Loans (Details) - USD ($) $ in Thousands	3 Months Ended
Sep. 30, 2023	Sep. 30, 2022
Allowance for Credit Loss [Abstract]
Threshold principal amount of collateral dependent loans evaluated individually	$ 250
Activity and Allocation of Allowance for Credit Losses on Loans by Segment [Roll Forward]
Balance, beginning of period	21,212	$ 22,761
Charge-offs	(129)	(171)
Recoveries	36	56
Provision	462	(499)
Balance, end of period	20,249	22,147
Unfunded Commitments [Member]
Activity and Allocation of Allowance for Credit Losses on Loans by Segment [Roll Forward]
Allowance for credit losses	1,500
Cumulative Effect Adjustment for ASU Implementation [Member] \| Adoption of ASU No. 2016-13 [Member]
Activity and Allocation of Allowance for Credit Losses on Loans by Segment [Roll Forward]
Balance, beginning of period	$ (1,332)
Smaller Business Loans [Member] \| Uncollateralized [Member]
Allowance for Credit Loss [Abstract]
Threshold period to charge off loans against allowance for loan losses	90 days
Residential Real Estate [Member] \| Residential Real Estate [Member]
Activity and Allocation of Allowance for Credit Losses on Loans by Segment [Roll Forward]
Balance, beginning of period	$ 2,794	2,373
Charge-offs	0	0
Recoveries	0	3
Provision	317	95
Balance, end of period	4,293	2,471
Residential Real Estate [Member] \| Residential Real Estate [Member] \| Cumulative Effect Adjustment for ASU Implementation [Member] \| Adoption of ASU No. 2016-13 [Member]
Activity and Allocation of Allowance for Credit Losses on Loans by Segment [Roll Forward]
Balance, beginning of period	1,182
Residential Real Estate [Member] \| Construction and Land [Member]
Activity and Allocation of Allowance for Credit Losses on Loans by Segment [Roll Forward]
Balance, beginning of period		141
Charge-offs		0
Recoveries		0
Provision		36
Balance, end of period		177
Residential Real Estate [Member] \| Multi-family [Member]
Activity and Allocation of Allowance for Credit Losses on Loans by Segment [Roll Forward]
Balance, beginning of period		119
Charge-offs		0
Recoveries		0
Provision		40
Balance, end of period		159
Commercial Real Estate [Member] \| Real Estate [Member]
Activity and Allocation of Allowance for Credit Losses on Loans by Segment [Roll Forward]
Balance, beginning of period	14,839	16,221
Charge-offs	0	0
Recoveries	1	0
Provision	405	(829)
Balance, end of period	12,356	15,392
Commercial Real Estate [Member] \| Real Estate [Member] \| Cumulative Effect Adjustment for ASU Implementation [Member] \| Adoption of ASU No. 2016-13 [Member]
Activity and Allocation of Allowance for Credit Losses on Loans by Segment [Roll Forward]
Balance, beginning of period	$ (2,889)
Commercial Real Estate [Member] \| Construction [Member]
Activity and Allocation of Allowance for Credit Losses on Loans by Segment [Roll Forward]
Balance, beginning of period		1,114
Charge-offs		0
Recoveries		0
Provision		(70)
Balance, end of period		1,044
Consumer Loan [Member] \| Uncollateralized [Member]
Allowance for Credit Loss [Abstract]
Threshold period to charge off loans against allowance for loan losses	90 days
Threshold period to charge off overdrawn deposit accounts against allowance for loan losses	60 days
Consumer Loan [Member] \| Home Equity [Member]
Activity and Allocation of Allowance for Credit Losses on Loans by Segment [Roll Forward]
Balance, beginning of period	$ 46	89
Charge-offs	0	0
Recoveries	0	0
Provision	25	(45)
Balance, end of period	188	44
Consumer Loan [Member] \| Home Equity [Member] \| Cumulative Effect Adjustment for ASU Implementation [Member] \| Adoption of ASU No. 2016-13 [Member]
Activity and Allocation of Allowance for Credit Losses on Loans by Segment [Roll Forward]
Balance, beginning of period	117
Consumer Loan [Member] \| Consumer [Member]
Activity and Allocation of Allowance for Credit Losses on Loans by Segment [Roll Forward]
Balance, beginning of period	332	349
Charge-offs	(122)	(167)
Recoveries	26	46
Provision	117	46
Balance, end of period	490	274
Consumer Loan [Member] \| Consumer [Member] \| Cumulative Effect Adjustment for ASU Implementation [Member] \| Adoption of ASU No. 2016-13 [Member]
Activity and Allocation of Allowance for Credit Losses on Loans by Segment [Roll Forward]
Balance, beginning of period	137
Commercial Loans [Member]
Activity and Allocation of Allowance for Credit Losses on Loans by Segment [Roll Forward]
Balance, beginning of period	3,201	2,355
Charge-offs	(7)	(4)
Recoveries	9	7
Provision	(402)	228
Balance, end of period	2,922	$ 2,586
Commercial Loans [Member] \| Cumulative Effect Adjustment for ASU Implementation [Member] \| Adoption of ASU No. 2016-13 [Member]
Activity and Allocation of Allowance for Credit Losses on Loans by Segment [Roll Forward]
Balance, beginning of period	$ 121

The threshold principal amount of collateral dependent loans evaluated individually.

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Threshold period for overdrawn financing receivable to write off as uncollectible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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

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- Definition

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

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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

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- Definition

Threshold period for when financing receivable is considered past due to write off as uncollectible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Amount of expected credit loss for credit exposure on off-balance-sheet commitment, including but not limited to, loan commitment, standby letter of credit, financial guarantee not accounted for as insurance. Excludes off-balance sheet credit exposure accounted for as insurance and instrument accounted for under derivatives and hedging.

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

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