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Summary of Significant Accounting Policies and New Accounting Standards (Details Textuals) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Mar. 31, 2017
Mar. 31, 2016
Jun. 30, 2016
Accounting Policies [Abstract]          
Revised amortization expense intangible assets   $ 1,165   $ 3,072  
Cash dividends per share amount (in dollars per share) $ 0.10   $ 0.10    
Cash dividends $ 3,959   $ 11,841    
Debt issuance costs         $ 2,538