CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017
Net revenues:
Total net revenues	$ 95,114	$ 112,847
Cost of net revenues:
Total cost of net revenues	62,420	67,184
Gross profit	32,694	45,663
Operating expenses:
Research and development	16,862	17,724
Selling, general and administrative	20,188	23,314
Acquisition-related (benefit), net	(139)	(223)
Total operating expenses	36,911	40,815
Operating income (loss)	(4,217)	4,848
Interest income	516	291
Other income (expense), net	106	82
Income (loss) before income taxes	(3,595)	5,221
Provision for (benefit from) income taxes	(7,176)	1,103
Net income	$ 3,581	$ 4,118
Net income per share:
Basic	$ 0.16	$ 0.19
Diluted	$ 0.16	$ 0.18
Weighted average shares outstanding:
Basic	22,519	21,555
Diluted	22,904	22,920
Systems and components
Net revenues:
Total net revenues	$ 85,320	$ 104,856
Cost of net revenues:
Total cost of net revenues	53,334	60,120
Technology development
Net revenues:
Total net revenues	9,794	7,991
Cost of net revenues:
Total cost of net revenues	$ 9,086	$ 7,064