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CONSOLIDATED BALANCE SHEETS (Parentheticals) - $ / shares
Sep. 30, 2025
Dec. 31, 2024
CONSOLIDATED BALANCE SHEETS    
Common stock, par value (in dollars per share) $ 1 $ 1
Common stock, shares authorized 15,000,000 15,000,000
Common stock, shares issued 2,919,695 2,900,681
Common stock, shares outstanding 2,919,695 2,900,681