Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Feb. 26, 2012	Feb. 27, 2011	Feb. 28, 2010
Consolidated Statements Of Operations [Abstract]
Net sales	$ 193,254	$ 211,652	$ 175,686
Cost of sales	138,512	141,751	124,084
Gross profit	54,742	69,901	51,602
Selling, general and administrative expenses	28,247	27,917	24,480
Restructuring charges (Note 12)	1,250	1,312
Earnings from operations	25,245	40,672	27,122
Interest and other income, net	808	645	1,062
Gain on litigation settlement (Note 11)	1,598
Earnings before income taxes	27,651	41,317	28,184
Income tax provision (Note 7)	4,209	8,696	2,825
Net earnings	$ 23,442	$ 32,621	$ 25,359
Earnings per share: (Note 10)
Basic earnings per share	$ 1.13	$ 1.58	$ 1.24
Basic weighted average shares	20,746	20,628	20,522
Diluted earnings per share	$ 1.13	$ 1.58	$ 1.23
Diluted weighted average shares	20,792	20,675	20,547