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Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares
Sep. 29, 2019
Jun. 30, 2019
Statement Of Financial Position [Abstract]    
Common stock, shares authorized 12,000,000 12,000,000
Common stock, par value $ 0.01 $ 0.01
Common stock, shares issued 7,344,312 7,304,994
Treasury stock, shares 3,612,584 3,613,439