Income Taxes - Reconciliation of income tax expense at statutory rate (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract]
Tax at statutory rate	$ 3,325	$ 3,494
Nontaxable municipal income	(106)	(108)
State tax, net of Federal benefit	85	164
Cash surrender value of Bank-owned life insurance	(109)	(96)
Tax credit benefits	(24)	(3)
Other, net	206	36
Total Income Taxes	$ 3,377	$ 3,487