Fair Value Of Financial Instruments (Tables)

12 Months Ended

Mar. 30, 2013

Fair Value Of Financial Instruments [Abstract]

Schedule Of Fair Value Of Financial Assets

	Quoted Prices
	in Active		Significant
	Markets for		Other		Significant
	Identical		Observable		Unobservable
	Assets		Inputs		Inputs
	Level 1		Level 2		Level 3		Total
Cash equivalents
Money market funds	$	54,762	$	-	$	-	$	54,762
Commercial paper		-		1,500		-		1,500
	$	54,762	$	1,500	$	-	$	56,262
Available-for-sale securities
Corporate debt securities	$	-	$	94,667	$	-	$	94,667
U.S. Treasury securities		34,381		-		-		34,381
Agency discount notes		-		1,027		-		1,027
Commercial paper		-		40,070		-		40,070
	$	34,381	$	135,764	$	-	$	170,145

	Quoted Prices
	in Active		Significant
	Markets for		Other		Significant
	Identical		Observable		Unobservable
	Assets		Inputs		Inputs
	Level 1		Level 2		Level 3		Total
Cash equivalents
Money market funds	$	40,557	$	-	$	-	$	40,557
Commercial paper		-		15,952		-		15,952
Corporate debt securities		-		1,112		-		1,112
	$	40,557	$	17,064	$	-	$	57,621
Available-for-sale securities
Corporate debt securities	$	-	$	48,025	$	-	$	48,025
U.S. Treasury securities		30,261		-		-		30,261
Agency discount notes		-		16,796		-		16,796
Commercial paper		-		23,709		-		23,709
	$	30,261	$	88,530	$	-	$	118,791