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CONSOLIDATED BALANCE SHEET (Parenthetical) - $ / shares
Dec. 31, 2018
Dec. 31, 2017
Statement of Financial Position [Abstract]    
Common stock, par value $ 0.10 $ 0.10
Common stock, shares authorized 2,810,000 4,000,000
Common stock, shares outstanding 2,039,919 2,169,370
Treasury stock, shares 770,081 1,667,027