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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares
Mar. 31, 2024
Dec. 31, 2023
CONDENSED CONSOLIDATED BALANCE SHEETS    
Common stock, shares par value $ 0.10 $ 0.10
Common stock, shares authorized 10,000,000 10,000,000
Common stock, shares issued 3,420,000 3,420,000
Treasury stock, shares 1,660,000 1,660,000