Note 5 - Net Income (Loss) Per Share of Common Stock- Basic and Diluted Earnings Per Common Share (Details) - USD ($)	3 Months Ended		12 Months Ended
	Feb. 28, 2023	Feb. 28, 2022	Feb. 28, 2023	Nov. 30, 2022	Feb. 28, 2022
Net (loss)	$ 342,210	$ (406,489)	$ 342,210	$ (406,489)	$ (406,489)
For basic net income (loss) per share - weighted average common shares outstanding (in shares)			4,976,955		4,569,720
Effect of dilutive stock options (in shares)			0		0
For diluted net income (loss) per share - weighted average common shares outstanding (in shares)			4,976,955		4,569,720
Net Income (Loss) per share (in dollars per share)			$ 0.07		$ (0.09)
Net Income (Loss) per share (in dollars per share)			$ 0.07		$ (0.09)