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Consolidated Balance Sheets (Parenthetical) - $ / shares
Dec. 31, 2024
Dec. 31, 2023
Preferred stock, par value $ 0.5 $ 0.5
Preferred stock, shares authorized 10,000,000 10,000,000
Preferred stock, shares issued 0 0
Common Stock [Member]    
Common stock, par value $ 0.5 $ 0.5
Common stock, shares authorized 60,000,000 60,000,000
Common stock, shares outstanding 38,861,032 38,705,586
Treasury stock, shares 4,066,978 4,778,988
Class B Common Stock [Member]    
Common stock, par value $ 0.5 $ 0.5
Common stock, shares authorized 10,000,000 10,000,000
Common stock, shares outstanding 5,578,921 5,562,945
Treasury stock, shares 20,712 48,263