Income Taxes - Reconciliation of income tax expense at statutory rate (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Tax at statutory rate	$ 3,494	$ 2,530
Nontaxable municipal income	(108)	(81)
State tax, net of Federal benefit	164	13
Cash surrender value of Bank-owned life insurance	(96)	(67)
Tax credit benefits	(3)	(2)
Other, net	36	50
TOTAL INCOME TAXES	$ 3,487	$ 2,443