Income Taxes - Reconciliation of income tax expense at statutory rate (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023
Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract]
Tax at statutory rate	$ 4,032	$ 3,227	$ 7,357	$ 6,721
Nontaxable municipal income	(76)	(117)	(182)	(225)
State tax, net of Federal benefit	199	131	284	295
Cash surrender value of Bank-owned life insurance	(110)	(99)	(218)	(195)
Tax credit benefits	(3)	(4)	(27)	(7)
Other, net	505	35	711	71
Actual provision	$ 4,547	$ 3,173	$ 7,925	$ 6,660