CONDENSED BALANCE SHEETS [Parenthetical] (USD $) In Thousands, except Share data, unless otherwise specified	Nov. 30, 2011	Feb. 28, 2011
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	2,267,775	2,267,775
Common stock, shares outstanding	2,267,775	2,267,775
Treasury stock, shares	173,287	173,287