Note 5 - Earnings Per Share - Computation of Earnings Per Share (Details) - USD ($)	3 Months Ended
	Feb. 29, 2020	Feb. 28, 2020	Feb. 28, 2019
Net income available to common shareholders		$ 43,194	$ 96,860
Weighted average shares outstanding - Basic and diluted (in shares)	7,263,508	7,263,508	7,263,508
Net Income per share - Basic and Diluted (in dollars per share)	$ 0.01	$ 0.01	$ 0.01