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Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - $ / shares
May 31, 2024
Nov. 30, 2023
Preferred stock, shares authorized (in shares) 5,000,000 5,000,000
Preferred stock, shares issued (in shares) 0 0
Preferred stock, par value (in dollars per share) $ 0.001 $ 0.001
Common stock, par value (in dollars per share) $ 0.001 $ 0.001
Common stock, shares authorized (in shares) 50,000,000 50,000,000
Common stock, shares issued (in shares) 24,964,787 24,168,014
Common stock, shares outstanding (in shares) 22,776,895 22,002,027
Treasury stock, shares (in shares) 2,187,892 2,165,987