Loans and Allowance for Credit Losses on Loans (Details)		6 Months Ended
		Dec. 31, 2024 USD ($) Loan	Dec. 31, 2023 USD ($)	Jun. 30, 2024 USD ($) Loan
Financing Receivable, Past Due [Line Items]
Accrued interest receivable		$ (188,000)		$ (42,000)
Accrued interest receivable		$ 6,900,000		$ 6,200,000
Financing Receivable, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration]		Accrued interest receivable		Accrued interest receivable
Loans on non-accrual		$ 4,055,000		$ 3,728,000
Nonaccrual loans with recent history of delinquency greater than 90 days		1,300,000		1,500,000
Loan repayments		723,000
Charge-offs		30,000
Loans returning to performing status		1,200,000
Accruing loans delinquent more than 90 days		0		0
Threshold principal amount of collateral dependent loans evaluated individually		250,000
Total	[1],[2]	1,551,400,000		1,499,473,000
Loans evaluated individually, amortized cost basis		1,600,000		1,400,000
Loans evaluated individually, allowance for credit losses on loans		548,000,000,000		662,000
Collateral dependent financing receivable collateral value		$ 1,100,000		662,000
Number of loans modified to borrowers experiencing financial difficulty		0
Loans modified to borrowers experiencing financial difficulty		$ 6,663,000	$ 0
Foreclosed real estate		$ 0		$ 0
Residential Real Estate [Member]
Financing Receivable, Past Due [Line Items]
Number of loans in the process of foreclosure (in Loan) | Loan		3		4
Loans in the process of foreclosure		$ 478,000		$ 686,000
Collateral dependent loans evaluated individually, amortized cost basis			$ 1,300,000	$ 774,000
Commercial Real Estate Portfolio [Member]
Financing Receivable, Past Due [Line Items]
Number of loans in the process of foreclosure (in Loan) | Loan		3		3
Loans in the process of foreclosure		$ 1,100,000		$ 1,600,000
Collateral dependent loans evaluated individually, amortized cost basis		$ 343,000		631,000
TDR loans which have subsequently defaulted during the period, number of loans (in Loan) | Loan		3
TDR loans which have subsequently defaulted during the period, amount		$ 6,600,000
Loans modified to borrowers experiencing financial difficulty		$ 6,645,000
Consumer Portfolio [Member]
Financing Receivable, Past Due [Line Items]
TDR loans which have subsequently defaulted during the period, number of loans (in Loan) | Loan		1
TDR loans which have subsequently defaulted during the period, amount		$ 18,000
Loans modified to borrowers experiencing financial difficulty		$ 18,000
Consumer Portfolio [Member] | Uncollateralized [Member]
Financing Receivable, Past Due [Line Items]
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
Unfunded Commitment [Member]
Financing Receivable, Past Due [Line Items]
Allowance for credit losses		$ 1,700,000		$ 1,300,000
Smaller Business Loans [Member] | Uncollateralized [Member]
Financing Receivable, Past Due [Line Items]
Threshold period to charge off loans against allowance for loan losses		90 days
Doubtful [Member]
Financing Receivable, Past Due [Line Items]
Total		$ 0
Loss [Member]
Financing Receivable, Past Due [Line Items]
Total		$ 0

[1] Loan balances exclude accrued interest receivable of $6.9 million and $6.2 million at December 31, 2024 and June 30, 2024, respectively, which is included in accrued interest receivable in the consolidated statement of financial condition.

[2] Loan balances include net deferred fees/costs of ($188,000) and ($42,000) at December 31, 2024 and June 30, 2024, respectively.