Quarterly report [Sections 13 or 15(d)]

Income per Common Share - Calculation of Basic and Diluted Net Income per Common Share (Detail)

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Income per Common Share - Calculation of Basic and Diluted Net Income per Common Share (Detail) - USD ($)
3 Months Ended 6 Months Ended
May 31, 2026
May 31, 2025
May 31, 2026
May 31, 2025
Numerator:        
Net Income $ 554,586 $ 355,785 $ 601,694 $ 638,640
Denominator:        
Weighted-average shares outstanding-basic 8,055,476 8,080,161 8,055,315 8,081,149
Dilutive common shares issuable upon exercise of stock options 0 45,559 17 77,595
Weighted-average shares-diluted 8,055,476 8,125,720 8,055,332 8,158,744
Basic $ 0.07 $ 0.04 $ 0.07 $ 0.08
Diluted $ 0.07 $ 0.04 $ 0.07 $ 0.08