Fair Value Measurements (Tables)

6 Months Ended

Sep. 28, 2013

Fair Value Disclosures [Abstract]

Fair Value Hierarchy for Financial Assets Measured at Fair Value on Recurring Basis

The Company’s fair value hierarchy for its financial assets measured at fair value on a recurring basis as of September 28, 2013 and March 30, 2013 was as follows (in thousands):

September 28, 2013	Level 1		Level 2			Level 3		Total
Money market securities	$	10,265	$	—		$	—	$	10,265
Corporate Bonds	—		17,723			—		17,723
Government agencies	—		17,592			—		17,592
Municipal bonds	—		16,917			—		16,917
Commercial paper	—		14,397			—		14,397
Forward purchase or (sale) contracts:
Japanese Yen	—		23			—		23
New Taiwan Dollar	—		8			—		8
Korean Won	—		118			—		118
Euro	—		(235		)	—		(235		)
British Pound	—		158			—		158
Chinese Renminbi	—		(2		)	—		(2		)
Singapore Dollar	—		4			—		4

March 30, 2013	Level 1		Level 2			Level 3		Total
Money market securities	$	9,457	$	—		$	—	$	9,457
Commercial paper	—		51,443			—		51,443
Government agencies	—		29,646			—		29,646
Corporate bonds	—		18,396			—		18,396
Municipal bonds	—		3,389			—		3,389
Forward purchase or (sale) contracts:
Japanese Yen	—		176			—		176
New Taiwan Dollar	—		(10		)	—		(10		)
Korean Won	—		(46		)	—		(46		)
Euro	—		100			—		100
British Pound	—		38			—		38
Chinese Renminbi	—		(1		)	—		(1		)
Singapore Dollar	—		(12		)	—		(12		)

Investments

Certain information regarding the Company’s investments at September 28, 2013 and March 30, 2013 was as follows (in thousands):

			Unrealized
September 28, 2013	Cost		Gain		Loss			Fair Value
Available-for-sale securities (current):
Government agencies	$	15,588	$	5	$	—		$	15,593
Commercial paper	14,397		—		—			14,397
Corporate Bonds	13,394		9		—			13,403
Municipal Bonds	12,842		6		—			12,848
	$	56,221	$	20	$	—		$	56,241
Available-for-sale securities (non-current):
Corporate Bonds	$	4,326	$	—	$	(6	)	$	4,320
Municipal Bonds	4,064		5		—			4,069
Government agencies	1,996		3		—			1,999
	$	10,386	$	8	$	(6	)	$	10,388
			Unrealized
March 30, 2013	Cost		Gain		Loss			Fair Value
Available-for-sale securities (current):
Commercial paper	$	51,443	$	—	$	—		$	51,443
Government agencies	26,556		8		—			26,564
Corporate Bonds	10,473		7		—			10,480
Municipal Bonds	2,058		—		—			2,058
	$	90,530	$	15	$	—		$	90,545
Available-for-sale securities (non-current):
Corporate Bonds	$	7,923	$	—	$	(7	)	$	7,916
Government agencies	3,082		—		—			3,082
Municipal Bonds	1,330		1		—			1,331
	$	12,335	$	1	$	(7	)	$	12,329