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 6 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2018
Dec. 31, 2017
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 55,000 0 58,000 82,000
Diluted weighted average shares outstanding 7,086,000 7,031,000 7,088,700 7,113,000
Antidilutive securities (shares)   865,582