Employee Benefit Plans, Components of Net Periodic Pension Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Components of Net Periodic Pension Costs [Abstract]
Interest cost	$ 196	$ 215
Accumulated benefit obligation for the pension plan	6,500	5,900
Defined Benefit Plan [Member]
Components of Net Periodic Pension Costs [Abstract]
Interest cost	196	215
Expected return on plan assets	(251)	(235)
Amortization of net loss	158	139
Net periodic pension expense	$ 103	$ 119