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Employee Benefit Plans, Schedule of Allocation of Plan Assets (Details) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2013
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Total plan assets $ 4,481 $ 4,887 $ 4,637
Weighted-average plan asset allocation (in hundredths) 100.00% 100.00%  
Money Market Funds [Member]      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Total plan assets $ 15 $ 15  
Weighted-average plan asset allocation (in hundredths) 0.30% 0.30%  
Large Cap Value Funds [Member]      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Target allocation for investment in mutual funds (in hundredths) 20.00%    
Mutual Funds [Member]      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Total plan assets $ 4,466 $ 4,872  
Weighted-average plan asset allocation (in hundredths) 99.70% 99.70%  
Maximum allowable variation (in hundredths) 5.00%    
Short-term and intermediate-term securities [Member]      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Target allocation for investment in mutual funds (in hundredths) 80.00%