Fair Value Measurements (Tables)

12 Months Ended

Dec. 28, 2019

Fair Value Disclosures [Abstract]

Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis

The following tables represent the Company’s fair value hierarchy for its marketable securities measured at fair value on a recurring basis (in thousands): 

	As of December 28, 2019								As of December 29, 2018
	Fair Value Measured Using								Fair Value Measured Using
	Level 1		Level 2			Total			Level 1		Level 2			Total
Assets
Money market funds	$	—	$	—		$	—		$	10,347	$	—		$	10,347
Corporate bonds	—		—			—			—		23,512			23,512
U.S. agency notes	—		—			—			—		2,999			2,999
U.S. treasuries	—		—			—			23,987		—			23,987
Total assets	$	—	$	—		$	—		$	34,334	$	26,511		$	60,845
Liabilities
Foreign currency exchange forward contracts	$	—	$	(159	)	$	(159	)	$	—	$	(91	)	$	(91	)

Schedule of Investments at Fair Value

Cash, cash equivalents and investments were as follows (in thousands): 

	December 28, 2019
	Adjusted Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Cash	$	109,201	$	—	$	—	$	109,201
Total cash	$	109,201	$	—	$	—	$	109,201

	December 29, 2018
	Adjusted Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Cash	$	168,620	$	—	$	—		$	168,620
Money market funds	10,347		—		—			10,347
U.S. treasuries	23,986		1		—			23,987
Total cash and cash equivalents	$	202,953	$	1	$	—		$	202,954
U.S. agency notes	3,000		—		(1		)	2,999
Corporate bonds	23,603		—		(91		)	23,512
Total short-term investments	$	26,603	$	—	$	(92	)	$	26,511
Total cash, cash equivalents and investments	$	229,556	$	1	$	(92	)	$	229,465