BALANCE SHEETS (Parenthetical) - $ / shares	Feb. 28, 2022	Feb. 28, 2021
BALANCE SHEETS
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	500,000	500,000
Preferred stock, shares issued	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	10,000,000	10,000,000
Common stock, shares outstanding	2,083,436	2,083,462
Treasury stock, shares	487,827	487,801