Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 01, 2023	Jul. 02, 2022	Jul. 01, 2023	Jul. 02, 2022
Income Statement [Abstract]
Total revenues	$ 12,855	$ 13,755	$ 26,561	$ 27,142
Cost of revenues	7,492	7,488	15,260	14,898
Gross profit	5,363	6,267	11,301	12,244
Operating expenses:
Research and development	1,845	1,922	3,594	4,038
Sales and marketing	4,264	4,607	8,547	8,907
General and administrative	2,148	1,898	4,398	3,736
Total operating expenses	8,257	8,427	16,539	16,681
Loss from operations	(2,894)	(2,160)	(5,238)	(4,437)
Other income (expense), net	138	(64)	404	(158)
Loss from operations before provision for income taxes	(2,756)	(2,224)	(4,834)	(4,595)
Provision for income taxes	10	17	22	37
Net loss	$ (2,766)	$ (2,241)	$ (4,856)	$ (4,632)
Net loss per share:
Basic	$ (0.17)	$ (0.14)	$ (0.3)	$ (0.29)
Diluted	$ (0.17)	$ (0.14)	$ (0.3)	$ (0.29)
Weighted average shares used in computing net loss per share:
Basic	16,036	15,894	16,018	15,888
Diluted	16,036	15,894	16,018	15,888