Condensed Balance Sheets (Parenthetical) (USD $)	May 31, 2014	Feb. 28, 2014
Balance Sheets [Abstract]
Allowance for doubtful accounts (in dollars)	$ 2	$ 2
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 issued	2,185,832	2,185,832
Common stock, shares outstanding	2,185,832	2,185,832
Treasury stock, shares	273,230	273,230
Treasury stock, shares issued	2,177,832	2,177,832
Treasury stock, shares outstanding	2,177,832	2,177,832