v3.26.1
Note 6 - Net Income Per Share of Common Stock - Basic and Diluted Earnings Per Common Share (Details) - USD ($)
 3 Months Ended 6 Months Ended
May 31, 2026
May 31, 2025
May 31, 2026
May 31, 2025
Numerator for net income per share:        
Net income $ 173,479 $ 1,482,069 $ 369,921 $ 1,426,313
Denominator:        
For net income per share - weighted average common shares outstanding (in shares) 5,188,198 5,094,188 5,164,445 5,074,643
Net income per share (in dollars per share) $ 0.03 $ 0.29 $ 0.07 $ 0.28