Employee Benefit Plans (Details)	3 Months Ended		9 Months Ended
	Mar. 31, 2016 USD ($)	Mar. 31, 2015 USD ($)	Mar. 31, 2016 USD ($) Installment	Mar. 31, 2015 USD ($)	Jun. 30, 2015 USD ($)
Defined Benefit Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost	$ 58,000	$ 55,000	$ 174,000	$ 165,000
Expected return on plan assets	(77,000)	(81,000)	(231,000)	(243,000)
Amortization of net loss	34,000	26,000	102,000	78,000
Net periodic pension cost	15,000	0	45,000	0
Supplemental Executive Retirement Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Net periodic pension cost	63,000	$ 52,000	$ 183,000	$ 151,000
Vesting period			10 years
Period in which lump sum benefit will be paid in the event of death, disability or termination			2 years
Number of annual installments, in which benefit will be paid | Installment			10
Postemployment benefits liability	$ 1,800,000		$ 1,800,000		$ 1,400,000
Supplemental Executive Retirement Plan [Member] | Deferred Base Salary [Member]
Defined Benefit Plan Disclosure [Line Items]
Maximum annual deferral per employee			50.00%
Supplemental Executive Retirement Plan [Member] | Deferred Annual Bonus [Member]
Defined Benefit Plan Disclosure [Line Items]
Maximum annual deferral per employee			100.00%