Consolidated Statements of Operations - USD ($) shares in Thousands		12 Months Ended
		Jan. 03, 2021	Dec. 29, 2019	Dec. 30, 2018
Revenue	[1]	$ 8,634,000	$ 10,310,000	$ 12,629,000
Cost of revenue		4,386,000	4,405,000	6,295,000
Gross profit		4,248,000	5,905,000	6,334,000
Operating expenses:
Research and development		7,544,000	12,350,000	9,948,000
Selling, general and administrative		6,820,000	8,918,000	9,982,000
Restructuring costs		753,000	0	0
Loss from operations		(10,869,000)	(15,363,000)	(13,596,000)
Interest expense		(328,000)	(350,000)	(108,000)
Interest income and other expense, net		97,000	189,000	77,000
Loss before income taxes		(11,100,000)	(15,524,000)	(13,627,000)
Provision for (benefit from) income taxes		51,000	(80,000)	152,000
Net loss		$ (11,151,000)	$ (15,444,000)	$ (13,779,000)
Net loss per share: (1)
Basic and diluted (in dollars per share)	[2]	$ (1.14)	$ (2.02)	$ (2.16)
Weighted average shares: (1)
Basic and diluted (in shares)	[2]	9,781	7,663	6,365

[1] New products include all products manufactured on 180 nanometer or smaller semiconductor processes, eFPGA IP license, QuickAI and SensiML AI software as a service (SaaS) revenues. Mature products include all products produced on semiconductor processes larger than 180 nanometer.

[2] Net loss per share and weighted average shares, basic and diluted are adjusted to reflect 1-for-14 reverse stock split effected on December 23, 2019.