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
3 Months Ended 12 Months Ended
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Accounting Policies [Abstract]      
Basic weighted average shares outstanding   7,031,400 7,031,400
Effect of common stock equivalents — stock issuable under outstanding equity awards   54,000 0
Diluted weighted average shares outstanding   7,085,300 7,031,400
Antidilutive securities (shares) 842,515