Quarterly report pursuant to Section 13 or 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
3 Months Ended 9 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Mar. 31, 2019
Mar. 31, 2018
Accounting Policies [Abstract]        
Basic weighted average shares outstanding 7,031,000 7,031,000 7,031,400 7,031,400
Effect of common stock equivalents — stock issuable under outstanding equity awards 53,000 0 56,000 0
Diluted weighted average shares outstanding 7,084,000 7,031,000 7,087,300 7,031,400
Antidilutive securities (shares)   853,000