Consolidated Statements of Comprehensive Earnings (unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Aug. 31, 2013	Sep. 01, 2012	Aug. 31, 2013	Sep. 01, 2012
Statement of Other Comprehensive Income [Abstract]
Net earnings	$ 6,121	$ 5,057	$ 10,280	$ 6,663
Other comprehensive earnings:
Unrealized (loss) gain on marketable securities, net of $(122), $(7), $(151) and $5 tax (benefit) expense, respectively	(227)	(13)	(280)	11
Unrealized gain on foreign currency hedge, net of $104 and $80 tax expense	182	0	141	0
Foreign currency translation adjustments	(1,869)	(2,025)	(1,617)	(1,528)
Other comprehensive earnings	(1,914)	(2,038)	(1,756)	(1,517)
Total comprehensive earnings	$ 4,207	$ 3,019	$ 8,524	$ 5,146