Condensed Consolidated Balance Sheets (Current Period Unaudited) (USD $) In Thousands, unless otherwise specified	Dec. 01, 2013	Mar. 03, 2013
Current assets:
Cash and cash equivalents	$ 128,679	$ 186,117	[1]
Marketable securities (Note 3)	162,581	89,099	[1]
Accounts receivable, less allowance for doubtful accounts of $421 and $423, respectively	22,852	25,878	[1]
Inventories (Note 4)	14,633	12,918	[1]
Prepaid expenses and other current assets (Note 9)	6,421	6,662	[1]
Total current assets	335,166	320,674	[1]
Property, plant and equipment, net	30,154	32,187	[1]
Goodwill and other intangible assets	9,854	9,854	[1]
Other assets	6,969	6,943	[1]
Total assets	382,143	369,658	[1]
Current liabilities:
Accounts payable	6,224	6,485	[1]
Accrued liabilities (Note 6)	6,679	6,016	[1]
Income taxes payable	2,691	4,177	[1]
Total current liabilities	15,594	16,678	[1]
Long-term debt (Note 5)	52,000	52,000	[1]
Deferred income taxes	761	812	[1]
Other liabilities	246	246	[1]
Total liabilities	68,601	69,736	[1]
Commitments and contingencies (Note 11)			[1]
Shareholders' equity:
Common stock	2,087	2,083	[1]
Additional paid in capital	160,558	158,790	[1]
Retained earnings	149,957	138,514	[1]
Accumulated other comprehensive income	1,034	629	[1]
	313,636	300,016	[1]
Less treasury stock, at cost	(94)	(94)	[1]
Total shareholders' equity	313,542	299,922	[1]
Total liabilities and shareholders' equity	$ 382,143	$ 369,658	[1]

[1] The balance sheet at March 3, 2013 has been derived from the audited financial statements at that date.