Employee Benefit Plans (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021	Jun. 30, 2021
Defined Benefit Plan [Member]
Components of Net Periodic Pension Costs [Abstract]
Interest cost	$ 42	$ 41	$ 126	$ 122
Expected return on plan assets	(70)	(64)	(210)	(191)
Amortization of net loss	32	52	96	157
Net periodic pension cost	4	29	12	88
Supplemental Executive Retirement Plan [Member]
Components of Net Periodic Pension Costs [Abstract]
Net periodic pension cost	333	$ 267	976	$ 793
Postemployment benefits liability	$ 9,600		$ 9,600		$ 8,200