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
Feb. 28, 2026
Feb. 28, 2025
Numerator:    
Net Income $ 47,108 $ 282,855
Denominator:    
Weighted-average shares outstanding-basic 8,055,150 8,082,159
Dilutive common shares issuable upon exercise of stock options 983 117,863
Weighted-average shares-diluted 8,056,133 8,200,022
Income per share - basic $ 0.01 $ 0.03
Income per share - diluted $ 0.01 $ 0.03