Income Taxes - Effective tax rate (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Amount
Federal income tax at statutory rate	$ 2,181	$ 2,607
State income tax, net of federal income tax benefit	880	1,107
Bank-owned life insurance	(39)	(39)
Non-deductible expenses	12	11
Shortfall on stock-based compensation	0	132
Return to provision adjustment	(1)	4
Other	3	2
Provision for income taxes	$ 3,036	$ 3,824
Tax Rate
Federal income tax at statutory rate,	21.00%	21.00%
State income tax, net of federal income tax benefit	8.48%	8.92%
Bank-owned life insurance	(0.38%)	(0.31%)
Non-deductible expenses	0.12%	0.09%
Shortfall on stock-based compensation	0.00%	1.06%
Return to provision adjustment	(0.01%)	0.03%
Other	0.02%	0.01%
Effective income tax	29.23%	30.80%