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Employee Benefit Plans, Schedule of Assumptions Used (Details)
12 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Projected benefit obligation [Abstract]    
Discount rate 3.81% 3.55%
Net periodic pension expense [Abstract]    
Amortization period 12 years 13 years
Discount rate 3.55% 4.32%
Expected long-term rate of return on plan assets 5.00% 7.00%
Compensation rate for frozen plan 0.00%