Loans and Allowance for Credit Losses on Loans, Activity and Allocation of Allowance for Loan Losses by Loan Class (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
Activity and Allocation of Allowance for Loan Losses by Loan Class [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
Cumulative Effect Adjustment for ASU Implementation [Member] \| Adoption of ASU No. 2016-13 [Member]
Activity and Allocation of Allowance for Loan Losses by Loan Class [Roll Forward]
Balance, beginning of period			(1,332)
Residential Real Estate [Member] \| Residential Real Estate [Member]
Activity and Allocation of Allowance for Loan Losses by Loan Class [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 Loan Losses by Loan Class [Roll Forward]
Balance, beginning of period			1,182
Residential Real Estate [Member] \| Construction and Land [Member]
Activity and Allocation of Allowance for Loan Losses by Loan Class [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 Loan Losses by Loan Class [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 Loan Losses by Loan Class [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 Loan Losses by Loan Class [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 Loan Losses by Loan Class [Roll Forward]
Balance, beginning of period			(2,889)
Commercial Real Estate [Member] \| Construction [Member]
Activity and Allocation of Allowance for Loan Losses by Loan Class [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] \| Home Equity [Member]
Activity and Allocation of Allowance for Loan Losses by Loan Class [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 Loan Losses by Loan Class [Roll Forward]
Balance, beginning of period			117
Consumer Loan [Member] \| Consumer [Member]
Activity and Allocation of Allowance for Loan Losses by Loan Class [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 Loan Losses by Loan Class [Roll Forward]
Balance, beginning of period			137
Commercial Loans [Member]
Activity and Allocation of Allowance for Loan Losses by Loan Class [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 Loan Losses by Loan Class [Roll Forward]
Balance, beginning of period			$ 121

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- Definition

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

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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