Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Apr. 02, 2022	Apr. 03, 2021
Income Statement [Abstract]
Total revenues	$ 13,387	$ 11,959
Cost of revenues	7,410	7,020
Gross profit	5,977	4,939
Operating expenses:
Research and development	2,116	1,165
Sales and marketing	4,300	2,982
General and administrative	1,838	2,633
Total operating expenses	8,254	6,780
Loss from operations	(2,277)	(1,841)
Other expense, net	(94)	(161)
Loss from operations before provision for income taxes	(2,371)	(2,002)
Provision for income taxes	20	8
Net loss	$ (2,391)	$ (2,010)
Net loss per share:
Basic	$ (0.15)	$ (0.14)
Diluted	$ (0.15)	$ (0.14)
Weighted average shares used in computing net loss per common share:
Basic	15,881	14,346
Diluted	15,881	14,346