Employee Benefit Plans (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Jun. 30, 2019
Defined Benefit Plan [Member]
Components of Net Periodic Pension Costs [Abstract]
Interest cost	$ 49	$ 54
Expected return on plan assets	(63)	(59)
Amortization of net loss	40	35
Net periodic pension cost	26	30
Supplemental Executive Retirement Plan [Member]
Components of Net Periodic Pension Costs [Abstract]
Net periodic pension cost	205	$ 158
Postemployment benefits liability	$ 5,500		$ 5,000