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Consolidated Balance Sheets (Parenthetical) - $ / shares
Dec. 31, 2023
Dec. 31, 2022
Statement of Financial Position [Abstract]    
Common stock, par value (in dollars per share) $ 1 $ 1
Common stock, shares authorized (in shares) 40,000,000 40,000,000
Common stock, shares issued (in shares) 13,606,399 13,466,281
Common stock, shares outstanding (in shares) 12,758,383 12,618,265
Treasury stock, shares (in shares) 848,016 848,016