Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 02, 2022	Jul. 03, 2021	Jul. 02, 2022	Jul. 03, 2021
Income Statement [Abstract]
Total revenues	$ 13,755	$ 13,426	$ 27,142	$ 25,385
Cost of revenues	7,488	7,318	14,898	14,338
Gross profit	6,267	6,108	12,244	11,047
Operating expenses:
Research and development	1,922	1,672	4,038	2,837
Sales and marketing	4,607	3,646	8,907	6,628
General and administrative	1,898	1,928	3,736	4,561
Total operating expenses	8,427	7,246	16,681	14,026
Loss from operations	(2,160)	(1,138)	(4,437)	(2,979)
Other (expense) income, net	(64)	2,539	(158)	2,378
(Loss) income from operations before provision for income taxes	(2,224)	1,401	(4,595)	(601)
Provision for income taxes	17	8	37	16
Net (loss) income	$ (2,241)	$ 1,393	$ (4,632)	$ (617)
Net (loss) income per share:
Basic	$ (0.14)	$ 0.09	$ (0.29)	$ (0.04)
Diluted	$ (0.14)	$ 0.09	$ (0.29)	$ (0.04)
Weighted average shares used in computing net (loss) income per common share:
Basic	15,894	15,647	15,888	14,996
Diluted	15,894	16,307	15,888	14,996