Employee Benefit Plans (Details) - USD ($)	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Jun. 30, 2016
Defined Benefit Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost	$ 53,000	$ 58,000	$ 107,000	$ 116,000
Expected return on plan assets	(46,000)	(77,000)	(115,000)	(154,000)
Amortization of net loss	49,000	34,000	98,000	68,000
Net periodic pension cost	56,000	15,000	90,000	30,000
Employer contributions	576,000
Supplemental Executive Retirement Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Net periodic pension cost	81,000	$ 62,000	158,000	$ 120,000
Postemployment benefits liability	$ 2,400,000		$ 2,400,000		$ 2,000,000