Basis of Presentation and Significant Accounting Policies (Tables)

9 Months Ended

Sep. 29, 2018

Accounting Policies [Abstract]

Schedule of Derivative Instruments

We mitigate foreign currency exchange rate risk by entering into foreign currency forward exchange contracts, details of which are presented in the following table:

	September 29, 2018		December 30, 2017
Total cost of contracts for Japanese yen (in thousands)	$	1,955	$	2,204
Number of contracts	2		2
Settlement month	June 2019		June 2018

Schedules of Revenue Concentration of Risk

The percentage of total revenue attributable to our top five identified end customers and largest identified end customer is presented in the following table:

	Three Months Ended				Nine Months Ended
	September 29, 2018		September 30, 2017		September 29, 2018		September 30, 2017
Revenue attributable to top five end customers	20	%	23	%	17	%	28	%
Revenue attributable to largest end customer	6	%	5	%	5	%	9	%

Revenue attributable to distributors as a percentage of total revenue is presented in the following table:

	Three Months Ended				Nine Months Ended
	September 29, 2018		September 30, 2017		September 29, 2018		September 30, 2017
Revenue attributable to distributors*	82	%	80	%	85	%	75	%

* During the first quarter of 2018, we updated our channel categories to group all forms of distribution into a single channel. Prior periods have been reclassified to match the current period presentation.