CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Per Share data, unless otherwise specified	Feb. 29, 2012	Feb. 28, 2011
Current assets:
Accounts receivable, net of allowance for doubtful accounts	$ 355	$ 325
Shareholders' equity:
Preferred stock, par value (in dollars per share)	$ 0.10	$ 0.10
Preferred stock, authorized (in shares)	1,000	1,000
Preferred stock, issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.10	$ 0.10
Common stock, authorized (in shares)	85,000	85,000
Common stock, issued (in shares)	28,127	27,487
Common stock, outstanding (in shares)	22,246	22,983
Cost of treasury stock (in shares)	5,881	4,504