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Consolidated Balance Sheets (Parenthetical) - $ / shares
Dec. 31, 2022
Dec. 31, 2021
Liabilities and Shareholders' Equity    
Common stock, par value (in dollars per share) $ 1 $ 1
Common stock, shares authorized (in shares) 24,000,000 24,000,000
Common stock, shares issued (in shares) 11,085,103 10,160,599
Common stock, shares outstanding (in shares) 11,085,103 10,160,599
Common stock in treasury, at cost (in shares) 924,504 918,471