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Employee Benefit Plans, Schedule of Allocation of Plan Assets (Details) - USD ($)
12 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2014
Defined Benefit Plan Disclosure [Line Items]      
Total plan assets $ 4,391,000 $ 4,481,000 $ 4,887,000
Weighted-average plan asset allocation 100.00% 100.00%  
Amount expected to be amortized from accumulated other comprehensive income in next fiscal year $ 197,000    
Money Market Funds [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Total plan assets $ 16,000 $ 15,000  
Weighted-average plan asset allocation 0.40% 0.30%  
Mutual Funds [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Total plan assets $ 4,375,000 $ 4,466,000  
Weighted-average plan asset allocation 99.60% 99.70%  
Mutual Funds [Member] | Maximum [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Allowable variation 5.00%    
Large Cap Value Funds [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Target allocation for investment in mutual funds 20.00%    
Short-term and Intermediate-term Fixed Income Bond Funds [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Target allocation for investment in mutual funds 80.00%