Fair Value Measurements (Tables)

3 Months Ended

Apr. 29, 2012

Fair Value Measurements [Abstract]

Financial Assets And Liabilities Measured And Recorded At Fair Value On A Recurring Basis

	Fair Value as of April 29, 2012								Fair Value as of January 29, 2012
(in thousands)	Total		(Level 1)		(Level 2)		(Level 3)		Total		(Level 1)		(Level 2)		(Level 3)
Agency securities	$	14,022	$	—	$	14,022	$	—	$	26,132	$	—	$	26,132	$	—
Corporate issues		3,009		—		3,009		—		4,511		—		4,511		—
Bank time deposits		5,102		—		5,102		—		70,000		—		70,000		—
Total financial assets	$	22,133	$	—	$	22,133	$	—	$	100,643	$	—	$	100,643	$	—

Financial Assets And Liabilities Measured And Recorded At Fair Value On A Recurring Basis, Presented On The Consolidated Condensed Balance Sheets

	Fair Value as of April 29, 2012								Fair Value as of January 29, 2012
(in thousands)	Total		(Level 1)		(Level 2)		(Level 3)		Total		(Level 1)		(Level 2)		(Level 3)
Temporary investments	$	8,611	$	—	$	8,611	$	—	$	83,121	$	—	$	83,121	$	—
Investments, maturities in excess of 1 year		13,522		—		13,522		—		17,522		—		17,522		—
Total financial assets	$	22,133	$	—	$	22,133	$	—	$	100,643	$	—	$	100,643	$	—