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Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares
Sep. 30, 2022
Dec. 31, 2021
Statement Of Financial Position [Abstract]    
Common stock, par value $ 1 $ 1
Common stock, shares authorized 40,000,000 40,000,000
Common stock, shares issued 16,090,000 15,940,000
Common stock, shares outstanding 16,090,000 15,940,000