Note 5 - Earnings Per Share - Computation of Earnings Per Share (Details) - USD ($)	3 Months Ended		6 Months Ended
	May 31, 2023	May 31, 2022	May 31, 2023	May 31, 2022
Net income available to common stockholders	$ 126,528	$ 93,916	$ 161,848	$ 156,806
Weighted average shares outstanding - Basic and diluted (in shares)	7,263,508	7,263,508	7,263,508	7,263,508
Net Income per share - Basic and Diluted (in dollars per share)	$ 0.02	$ 0.01	$ 0.02	$ 0.02