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Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - $ / shares
Dec. 31, 2020
Jun. 30, 2020
Statement of Financial Position [Abstract]    
Common stock, par value $ 0.10 $ 0.10
Common stock, shares authorized 2,000,000 2,000,000
Common stock, shares issued 1,437,138 1,437,138
Common stock, shares outstanding 1,339,310 1,339,310
Treasury stock, shares 97,828 97,828