Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Oct. 01, 2022	Sep. 30, 2023	Oct. 01, 2022
Income Statement [Abstract]
Total revenues	$ 12,850	$ 14,635	$ 39,411	$ 41,777
Cost of revenues	7,229	8,175	22,489	23,073
Gross profit	5,621	6,460	16,922	18,704
Operating expenses:
Research and development	1,541	1,687	5,135	5,725
Sales and marketing	3,823	4,445	12,370	13,352
General and administrative	1,945	2,023	6,343	5,759
Total operating expenses	7,309	8,155	23,848	24,836
Loss from operations	(1,688)	(1,695)	(6,926)	(6,132)
Other income (expense), net	(58)	(58)	346	(216)
Loss from operations before provision for income taxes	(1,746)	(1,753)	(6,580)	(6,348)
Provision for income taxes	8	14	30	51
Net loss	$ (1,754)	$ (1,767)	$ (6,610)	$ (6,399)
Net loss per share:
Basic	$ (0.11)	$ (0.11)	$ (0.41)	$ (0.4)
Diluted	$ (0.11)	$ (0.11)	$ (0.41)	$ (0.4)
Weighted average shares used in computing net loss per share:
Basic	16,231	15,986	16,089	15,921
Diluted	16,231	15,986	16,089	15,921