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Earnings Per Share (Details) - shares
12 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2015
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Stock options, outstanding 700,000 900,000 1,000,000
Employee Stock Option [Member]      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Antidilutive securities excluded from computation of earnings per share 70,000 216,500 224,000
Restricted Stock [Member]      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Stock options, outstanding 111,000 190,000 200,000