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CONSOLIDATED BALANCE SHEETS (Parenthetical)
Dec. 31, 2022
$ / shares
shares
Dec. 31, 2021
$ / shares
shares
Class A Common Stock    
Common stock, par value (USD per share) | $ / shares $ 1 $ 1
Common stock, shares outstanding (in shares) | shares 5,782,944 5,616,568
Class B Common Stock    
Common stock, par value (USD per share) | $ / shares $ 1 $ 1
Common stock, shares outstanding (in shares) | shares 1,566,129 1,566,613
Common stock, convertible conversion ratio 1 1