Balance Sheet Components (Tables)

3 Months Ended

Apr. 01, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of supplemental balance sheet disclosures

The following table provides details relating to certain balance sheet line items as of April 1, 2018, and December 31, 2017:

	As of
	April 1, 2018			December 31, 2017
	(in thousands)
Inventories:
Work-in-process	$	2,852		$	2,894
Finished goods	698			665
	$	3,550		$	3,559
Other current assets:
Prepaid expenses	$	1,196		$	836
Other	230			161
	$	1,426		$	997
Property and equipment:
Equipment	$	11,058		$	10,996
Software	2,811			3,139
Furniture and fixtures	42			46
Leasehold improvements	675			674
	14,586			14,855
Accumulated depreciation and amortization	(12,469		)	(12,480		)
	$	2,117		$	2,375
Accrued liabilities:
Employee related accruals	$	1,431		$	1,143
Other	551			510
	$	1,982		$	1,653