Employee Benefit Plans (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Jun. 30, 2021
Defined Benefit Plan [Member]
Components of Net Periodic Pension Costs [Abstract]
Interest cost	$ 42	$ 41
Expected return on plan assets	(70)	(64)
Amortization of net loss	32	52
Net periodic pension cost	4	29
Supplemental Executive Retirement Plan [Member]
Components of Net Periodic Pension Costs [Abstract]
Net periodic pension cost	314	$ 256
Postemployment benefits liability	$ 8,800		$ 8,200