Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	May 27, 2012	May 29, 2011
Cash flows from operating activities:
Net earnings	$ 4,933	$ 7,242
Depreciation and amortization	1,100	1,429
Amortization of bond premium	306	361
Stock-based compensation	194	210
Change in operating assets and liabilities	(4,153)	964
Net cash provided by operating activities	2,380	10,206
Cash flows from investing activities:
Purchases of property, plant and equipment	(388)	(1,503)
Purchases of marketable securities	(73,414)	(21,993)
Proceeds from sales and maturities of marketable securities	72,547	69,007
Business acquisition		(1,100)
Net cash (used in) provided by investing activities	(1,255)	44,411
Cash flows from financing activities:
Dividends paid	(2,080)	(2,072)
Proceeds from exercise of stock options	32	109
Tax benefits from exercise of stock options		2
Net cash used in financing activities	(2,048)	(1,961)
Change in cash and cash equivalents before exchange rate changes	(923)	52,656
Effect of exchange rate changes on cash and cash equivalents	8	21
Change in cash and cash equivalents	(915)	52,677
Cash and cash equivalents, beginning of period	129,503	112,195
Cash and cash equivalents, end of period	128,588	164,872
Supplemental cash flow information:
Cash paid during the period for income taxes	$ 671	$ 436