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CONSOLIDATED BALANCE SHEETS (unaudited) (Parentheticals) - $ / shares
Mar. 31, 2025
Dec. 31, 2024
Shareholders' Equity    
Common stock, shares authorized (in shares) 50,000,000 50,000,000
Common stock, par value (in dollars per share) $ 5 $ 5
Common stock, shares outstanding (in shares) 41,873,995 41,827,967