Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jul. 01, 2017

Accounting Policies [Abstract]

Total Stock-Based Compensation Expense

The following table presents details of total stock-based compensation expense that is included in each functional line item on our condensed consolidated statements of operations:

	Three months ended				Six months ended
	July 1, 2017		July 2, 2016		July 1, 2017		July 2, 2016
Cost of revenue	$	—	$	2,000	$	—	$	3,000
Research and development		14,000		37,000		28,000		74,000
Selling, general and administrative		84,000		219,000		173,000		442,000
Total stock-based compensation expense	$	98,000	$	258,000	$	201,000	$	519,000