Income Taxes - Schedule of components of income tax expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Federal:
Current	$ (396)	$ (448)
Deferred	1,283	51
Federal income tax expense (benefit)	887	(397)
State, current	60	10
Income tax expense (benefit)	$ 947	$ (387)