Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Nov. 25, 2012	Nov. 27, 2011	Nov. 25, 2012	Nov. 27, 2011
Consolidated Statements Of Operations [Abstract]
Net sales	$ 41,265	$ 47,312	$ 133,741	$ 149,578
Cost of sales	28,725	34,316	95,026	106,077
Gross profit	12,540	12,996	38,715	43,501
Selling, general and administrative expenses	6,365	6,991	20,012	21,443
Restructuring charges (Note 7)	559		3,095
Earnings from operations	5,616	6,005	15,608	22,058
Interest and other income (Note 8)	143	188	520	2,203
Earnings from operations before income taxes	5,759	6,193	16,128	24,261
Income tax provision	1,049	814	3,239	3,970
Net earnings	$ 4,710	$ 5,379	$ 12,889	$ 20,291
Earnings per share (Note 9)
Basic	$ 0.23	$ 0.26	$ 0.62	$ 0.98
Diluted	$ 0.23	$ 0.26	$ 0.62	$ 0.98
Weighted average number of common and common equivalent shares outstanding:
Basic shares	20,801	20,754	20,799	20,739
Diluted shares	20,803	20,756	20,824	20,784
Dividends declared per share	$ 0.10	$ 0.10	$ 0.30	$ 0.30