Consolidated Statements of Comprehensive Income (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Dec. 01, 2013	Nov. 25, 2012	Dec. 01, 2013	Nov. 25, 2012
Net earnings	$ 4,721	$ 4,710	$ 17,695	$ 12,889
Other comprehensive income, net of tax:
Foreign currency translation	9	189	210	371
Less: reclassification adjustment for foreign currency translation gains included in net income				(1,465)
Other comprehensive income (loss)	245	172	405	(1,140)
Total comprehensive income	4,966	4,882	18,100	11,749
Gains On Marketable Securities [Member]
Other comprehensive income, net of tax:
Unrealized holding gains (losses) arising during the period	176	39	153	6
Less: reclassification adjustment for gains (losses) included in net income		(8)		(10)
Losses On Marketable Securities [Member]
Other comprehensive income, net of tax:
Unrealized holding gains (losses) arising during the period		(49)	(62)	(60)
Less: reclassification adjustment for gains (losses) included in net income	$ 60	$ 1	$ 104	$ 18