v3.26.3
Note 6 - Net Income (Loss) Per Share of Common Stock - Basic and Diluted Earnings Per Common Share (Details) - USD ($)
 3 Months Ended 9 Months Ended
Aug. 31, 2026
Aug. 31, 2025
Aug. 31, 2026
Aug. 31, 2025
Net income $ (139,720) $ 254,110 $ 230,200 $ 1,680,423
Denominator:        
For basic and diluted net income (loss) per share - weighted average common shares outstanding (in shares) 5,201,440 5,106,033 5,176,868 5,085,183
Net income (loss) per share (in dollars per share) $ (0.03) $ 0.05 $ 0.04 $ 0.33
Net income (loss) per share (in dollars per share) $ (0.03) $ 0.05 $ 0.04 $ 0.33
Net income $ (139,720) $ 254,110 $ 230,200 $ 1,680,423
Net income per share (in dollars per share) $ (0.03) $ 0.05 $ 0.04 $ 0.33