Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies (Earnings per Share) (Details)

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Summary of Significant Accounting Policies (Earnings per Share) (Details) - shares
12 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Accounting Policies [Abstract]    
Basic weighted average shares outstanding 7,029,400 6,981,900
Effect of common stock equivalents — stock issuable under outstanding equity awards 93,000 138,000
Diluted weighted average shares outstanding 7,121,500 7,120,300