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Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - $ / shares
Mar. 31, 2025
Dec. 31, 2024
Common stock, par value (in dollars per share) $ 2 $ 2
Common stock, authorized (in shares) 18,000,000 18,000,000
Common stock, issued (in shares) 8,915,557 8,949,110
Common stock, outstanding (in shares) 8,915,557 8,949,110