Loans and Allowance for Credit Losses on Loans (Details)		9 Months Ended
		Mar. 31, 2025 USD ($) Loan	Jun. 30, 2024 USD ($) Loan
Financing Receivable, Past Due [Line Items]
Loan balances include net deferred fees/costs		$ (217,000)	$ (42,000)
Accrued interest receivable		$ 7,200,000	$ 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		$ 2,925,000	$ 3,728,000
Nonaccrual loans with recent history of delinquency greater than 90 days		1,400,000	1,500,000
Loan repayments		2,300,000
Charge-offs		128,000
Loans returning to performing status		67,000
Loans returning to performing status		1,700,000
Accruing loans delinquent more than 90 days		0	0
Threshold principal amount of collateral dependent loans evaluated individually		250,000
Total	[1],[2]	1,619,378,000	1,499,473,000
Loans evaluated individually, amortized cost basis		759,000	1,400,000
Loans evaluated individually, allowance for credit losses on loans		557,000	662,000
Collateral dependent financing receivable collateral value		202,000	662,000
Foreclosed real estate		$ 0	$ 0
Commercial Real Estate Portfolio [Member]
Financing Receivable, Past Due [Line Items]
Number of loans in the process of foreclosure (in Loan) | Loan		2	3
Loans in the process of foreclosure		$ 1,100,000	$ 1,600,000
Collateral dependent loans evaluated individually, amortized cost basis		$ 759,000	$ 631,000
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		$ 299,000
TDR loans which have subsequently no payment default during the period, number of loans (in Loan) | Loan		3
TDR loans which have subsequently no payment default during the period, amount		$ 6,600,000
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		$ 297,000	$ 686,000
Collateral dependent loans evaluated individually, amortized cost basis			774,000
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		$ 16,000
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		$ 1,800,000	$ 1,300,000
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 $7.2 million and $6.2 million at March 31, 2025 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 ($217,000) and ($42,000) at March 31, 2025 and June 30, 2024, respectively.