Employee Benefit Plans, Components of Net Periodic Pension Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Components of Net Periodic Pension Costs [Abstract]
Interest cost	$ 219	$ 215
Accumulated benefit obligation for the pension plan	5,400	5,900
Defined Benefit Plan [Member]
Components of Net Periodic Pension Costs [Abstract]
Interest cost	219	215
Expected return on plan assets	(247)	(231)
Amortization of net loss	168	197
Net periodic pension expense	$ 140	$ 181