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Consolidated Balance Sheets (Parenthetical) - $ / shares
Dec. 31, 2021
Dec. 31, 2020
Consolidated Balance Sheets [Abstract]    
Common Stock, Par Value Per Share $ 1.00 $ 1.00
Common Stock, Shares Authorized 15,000,000 15,000,000
Common Stock, Shares, Issued 4,710,972 4,710,872
Common Stock, Shares, Outstanding 4,441,443 4,389,355
Capital Stock, Shares Authorized 5,000,000 5,000,000
Capital Stock, Shares, Issued 0 0
Capital Stock, Shares, Outstanding 0 0
Treasury Stock, Shares 269,529 321,517