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Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - $ / shares
Jun. 30, 2025
Mar. 31, 2025
Dec. 31, 2024
Jun. 30, 2024
Preferred stock, par value (in dollars per share) $ 0.01   $ 0.01  
Preferred stock, shares authorized (in shares) 1,000,000   1,000,000  
Preferred stock, shares issued (in shares) 0   0  
Common stock, par value (in dollars per share) $ 0.01   $ 0.01  
Common stock, shares authorized (in shares) 20,000,000   20,000,000  
Common stock, shares issued (in shares) 7,740,685     7,706,344
Common stock, shares outstanding (in shares)   7,711,126 7,676,785  
Treasury Stock, Common, Shares (in shares)     29,559  
Treasury Stock, Common, Shares (in shares)     29,559