Unaudited Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 01, 2023	Oct. 02, 2022	Oct. 01, 2023	Oct. 02, 2022
Revenue	$ 6,665	$ 3,459	$ 13,719	$ 12,096
Cost of revenue	1,537	1,781	4,998	5,413
Gross profit	5,128	1,678	8,721	6,683
Operating expenses:
Research and development	1,933	1,018	5,067	3,541
Selling, general and administrative	1,915	1,900	5,700	6,018
Total operating expenses	3,848	2,918	10,767	9,559
Operating income (loss)	1,280	(1,240)	(2,046)	(2,876)
Interest expense	(48)	(44)	(156)	(98)
Interest income and other (expense) income, net	(36)	(60)	(99)	(42)
Income (loss) before income taxes	1,196	(1,344)	(2,301)	(3,016)
Provision for income taxes	4	3	4	19
Net income (loss)	$ 1,192	$ (1,347)	$ (2,305)	$ (3,035)
Net income (loss) per share:
Basic EPS (in dollars per share)	$ 0.09	$ (0.11)	$ (0.17)	$ (0.24)
Diluted EPS (in dollars per share)	$ 0.08	$ (0.11)	$ (0.17)	$ (0.24)
Weighted average shares outstanding:
Basic (in shares)	13,859	12,664	13,377	12,401
Diluted (in shares)	14,131	12,664	13,377	12,401