Income Taxes - Reconciliation of income tax expense at statutory rate (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024
Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract]
Tax at statutory rate	$ 4,163	$ 2,970	$ 11,520	$ 9,692
Nontaxable municipal income	(74)	(124)	(256)	(349)
State tax, net of Federal benefit	196	61	480	356
Cash surrender value of Bank-owned life insurance	(108)	(101)	(326)	(297)
Tax credit benefits	(2)	(3)	(29)	(10)
Other, net	(36)	34	676	105
Total Income Taxes	$ 4,139	$ 2,837	$ 12,065	$ 9,497