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Employee Benefit Plans, Change in Benefit Obligation (Details) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Employee Benefit Plans [Abstract]    
Required age to participate in defined Benefit Plan 21 years  
Benefit obligation at beginning of year $ 6,171 $ 5,457
Interest cost 215 232
Actuarial (gain) loss (298) 695
Benefits paid (221) (213)
Benefit obligation at June 30 $ 5,867 $ 6,171