Loans and Allowance for Credit Losses on Loans, Allowance for Credit Losses on Loans (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
Allowance for Credit Loss [Abstract]
Threshold principal amount of collateral dependent loans evaluated individually	$ 250		$ 250
Activity and Allocation of Allowance for Credit Losses on Loans by Segment [Roll Forward]
Balance, beginning of period	20,309	$ 22,289	21,212	$ 22,761
Charge-offs	(260)	(229)	(549)	(544)
Recoveries	56	39	129	137
Provision	277	(944)	922	(1,199)
Balance, end of period	20,382	21,155	20,382	21,155
Unfunded Commitments [Member]
Activity and Allocation of Allowance for Credit Losses on Loans by Segment [Roll Forward]
Allowance for credit losses	$ 1,300		1,300
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		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	$ 4,010	2,492	$ 2,794
Charge-offs	0	0	0
Recoveries	0	0	0
Provision	128	146	162
Balance, end of period	4,138	2,638	4,138	2,638
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		193		141
Charge-offs		0		0
Recoveries		0		0
Provision		(21)		31
Balance, end of period		172		172
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		167		119
Charge-offs		0		0
Recoveries		0		0
Provision		32		80
Balance, end of period		199		199
Residential Real Estate [Member] \| Real Estate [Member]
Activity and Allocation of Allowance for Credit Losses on Loans by Segment [Roll Forward]
Balance, beginning of period				2,373
Charge-offs				0
Recoveries				5
Provision				260
Balance, end of period		2,638		2,638
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	12,523	15,450	14,839	16,221
Charge-offs	0	(9)	0	(9)
Recoveries	1	0	2	0
Provision	(28)	(1,869)	544	(2,640)
Balance, end of period	$ 12,496	13,572	12,496	13,572
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		1,100		1,114
Charge-offs		0		0
Recoveries		0		0
Provision		380		366
Balance, end of period		1,480		1,480
Consumer Loan [Member] \| Uncollateralized [Member]
Allowance for Credit Loss [Abstract]
Threshold period to charge off loans against allowance for loan losses	90 days		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	$ 192	38	$ 46	89
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision	7	11	36	(40)
Balance, end of period	199	49	199	49
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	486	284	332	349
Charge-offs	(117)	(117)	(393)	(421)
Recoveries	46	27	100	102
Provision	87	51	326	215
Balance, end of period	502	245	502	245
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	3,098	2,565	3,201	2,355
Charge-offs	(143)	(103)	(156)	(114)
Recoveries	9	12	27	30
Provision	83	326	(146)	529
Balance, end of period	$ 3,047	$ 2,800	3,047	$ 2,800
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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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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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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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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