Note 1 - Summary of Significant Accounting Policies - Basic and Diluted Earnings Per Common Share (Details) - USD ($)	12 Months Ended
	Nov. 30, 2022	Nov. 30, 2021
Net Income	$ 97,797	$ 212,631
For basic net income per share - weighted average common shares outstanding (in shares)	4,707,384	4,515,229
Effect of dilutive stock options (in shares)	0	0
For diluted net income per share - weighted average common shares outstanding (in shares)	4,707,384	4,515,229
Net Income per share (in dollars per share)	$ 0.02	$ 0.05
Net Income per share (in dollars per share)	$ 0.02	$ 0.05