Employee Benefit Plans, Components of Net Periodic Pension Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Components of Net Periodic Pension Costs [Abstract]
Interest cost	$ 163	$ 196
Accumulated benefit obligation for the pension plan	6,300	6,500
Defined Benefit Plan [Member]
Components of Net Periodic Pension Costs [Abstract]
Interest cost	163	196
Expected return on plan assets	(254)	(251)
Amortization of net loss	209	158
Net periodic pension expense	$ 118	$ 103