Employee Benefit Plans (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016	Jun. 30, 2016
Defined Benefit Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost	$ 54	$ 58	$ 161	$ 174
Expected return on plan assets	(58)	(77)	(173)	(231)
Amortization of net loss	49	34	147	102
Net periodic pension cost	45	15	135	45
Employer contributions			576
Supplemental Executive Retirement Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Net periodic pension cost	82	$ 63	239	$ 183
Postemployment benefits liability	$ 2,600		$ 2,600		$ 2,000