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Consolidated Balance Sheets (Parentheticals) - $ / shares
Dec. 31, 2023
Dec. 31, 2022
Common stock, par value (in dollars per share) $ 2 $ 2
Common stock, authorized (in shares) 18,000,000 18,000,000
Common Stock, Shares, Issued (in shares) 8,992,167 8,992,167
Common Stock, Outstanding (in shares) 8,992,167 8,992,167