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Consolidated Balance Sheets (Parenthetical) - $ / shares
Jun. 30, 2022
Dec. 31, 2021
Statement of Financial Position [Abstract]    
Common stock, par value (in dollars per share) $ 1 $ 1
Common stock, shares authorized (in shares) 20,000,000 20,000,000
Common stock, shares issued (in shares) 13,077,044 12,934,966
Common stock, shares outstanding (in shares) 12,229,028 12,086,950
Treasury stock, shares (in shares) 848,016 848,016