Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, unless otherwise specified	Nov. 30, 2013	Feb. 28, 2013
Allowance for doubtful accounts receivable	$ 51	$ 23
Preferred stock, par value
Preferred stock, shares authorized	10,000	10,000
Preferred stock, shares issued
Preferred stock, shares outstanding
Common stock, par value
Common stock, shares authorized	50,000	50,000
Common stock, shares issued	9,732	9,732
Common stock, shares outstanding	7,593	7,566
Treasury stock, shares	2,139	2,166