Income Taxes - Schedule of reconciliation of the statutory federal income to the income tax expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Reconciliation of the statutory federal income to the income tax expense
Federal income tax at statutory rate	$ 630	$ 1,009
State tax, net of federal benefit	47	79
Bank owned-life insurance	(232)	(218)
Income tax benefit	(211)	(288)
Other	(34)	(14)
Income tax expense	$ 200	$ 568
Reconciliation of the statutory federal income to the income tax expense (Percentage)
Federal income tax at statutory rate, percent	21.00%	21.00%
State tax, net of federal benefit, percent	1.60%	1.60%
Bank owned-life insurance, percent	(7.70%)	(4.50%)
Income tax benefit, percent	(7.10%)	(6.00%)
Other, percent	(1.10%)	(0.30%)
Effective tax rate, percent	6.70%	11.80%