Fair Value Measurements (Tables)

9 Months Ended

Sep. 28, 2013

Components of Cash and Cash Equivalent and Investments

The components of the Company’s cash, cash equivalents and investments are as follows (in thousands):

			FairValueMeasuredUsing
	Asof September28, 2013		QuotedPrices in Active Markets for IdenticalAssets (Level 1)			SignificantOther Observable Inputs (Level2)			Significant Unobservable Inputs (Level 3)
Cash and cash equivalents:
Money market funds	$	63,553	$	63,553	$		—	$		—
Corporate debt securities		1,003		—			1,003			—
Total cash equivalents		64,556	$	63,553	$		1,003	$		—
Cash		501
Total cash and cash equivalents	$	65,057
Short-term investments:
Corporate debt securities	$	32,336	$	—	$		32,336	$		—
U.S. agency debt securities		5,010		—			5,010			—
U.S. government securities		3,001		3,001			—			—
Total short-term investments	$	40,347	$	3,001	$		37,346	$		—

			FairValueMeasuredUsing
	As of December31, 2012		QuotedPrices in Active Markets for IdenticalAssets (Level 1)			SignificantOther Observable Inputs (Level2)			Significant Unobservable Inputs (Level 3)
Cash and cash equivalents:
Money market funds	$	11,615	$	11,615	$		—	$		—
Cash	$	7,060
Total cash equivalents	$	18,675

Financial Instruments Measured at Amortized Costs, Gross Unrealized Gain, Gross Unrealized Loss and Fair Value by Significant Investment Categories

Financial instruments measured at amortized costs, gross unrealized gain, gross unrealized loss and fair value by significant investment categories are summarized as follows (in thousands):

	As of September 28, 2013
	Amortized Costs		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Cash and cash equivalents:
Money market funds	$	63,553	$	—	$	—		$	63,553
Corporate debt securities		1,004		—		(1	)		1,003
Cash		501		—		—			501
Total cash and cash equivalents	$	65,058	$	—	$	(1	)	$	65,057
Short-term investments:
Corporate debt securities	$	32,339	$	16	$	(19	)	$	32,336
U.S. agency debt securities		5,007		3		—			5,010
U.S. government securities		2,995		6		—			3,001
Total short-term investments	$	40,341	$	25	$	(19	)	$	40,347

Contractual Maturity Date of Short-Term Investments

The contractual maturity date of the short-term investments was as follows (in thousands):

	As of
	September28,2013		December31,2012
Due within one year	$	11,031	$	—
Due between one and five years		29,316		—
Total short-term investments	$	40,347	$	—