Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Apr. 01, 2023	Apr. 02, 2022
Income Statement [Abstract]
Total revenues	$ 13,706	$ 13,387
Cost of revenues	7,768	7,410
Gross profit	5,938	5,977
Operating expenses:
Research and development	1,749	2,116
Sales and marketing	4,283	4,300
General and administrative	2,250	1,838
Total operating expenses	8,282	8,254
Loss from operations	(2,344)	(2,277)
Other income (expense), net	266	(94)
Loss from operations before provision for income taxes	(2,078)	(2,371)
Provision for income taxes	12	20
Net loss	$ (2,090)	$ (2,391)
Net loss per share:
Basic	$ (0.13)	$ (0.15)
Diluted	$ (0.13)	$ (0.15)
Weighted average shares used in computing net (loss) income per common share:
Basic	16,001	15,881
Diluted	16,001	15,881