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Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - $ / shares
Mar. 31, 2026
Dec. 31, 2025
Temporary Equity, Par or Stated Value Per Share (in dollars per share) $ 0.01 $ 0.01
Temporary Equity, Shares Authorized (in shares) 5,000,000 5,000,000
Preferred stock par value (in dollars per share) $ 0.01 $ 0.01
Preferred stock, shares authorized (in shares) 5,000,000 5,000,000
Common stock, par value (in dollars per share) $ 0.01 $ 0.01
Common stock, shares authorized (in shares) 5,000,000,000 5,000,000,000
Common stock, shares outstanding (in shares) 26,717,000 25,216,000
Common stock, shares issued (in shares) 26,717,000 25,216,000
Series F Preferred Stock [Member]    
Temporary Equity, Shares Issued (in shares) 0 1,347,000
Temporary Equity, Shares Outstanding (in shares) 0 1,347,000
Preferred stock, shares outstanding (in shares) 0  
Series B Preferred Stock [Member]    
Preferred stock, shares issued (in shares) 0 0
Preferred stock, shares outstanding (in shares) 0 0