Employee Benefit Plans, Components of Net Periodic Pension Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Defined Benefit Plan Disclosure [Line Items]
Interest cost	$ 215	$ 232
Accumulated benefit obligation for the pension plan	5,900	6,200
Defined Benefit Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost	215	232
Expected return on plan assets	(231)	(307)
Amortization of net loss	197	135
Net periodic pension cost	$ 181	$ 60