Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Jan. 02, 2021	Dec. 28, 2019
Income Statement [Abstract]
Total revenues	$ 36,347	$ 43,447
Cost of revenues	20,789	25,508
Gross profit	15,558	17,939
Operating expenses:
Research and development	3,282	3,682
Sales and marketing	12,239	14,852
General and administrative	6,620	8,379
Total operating expenses	22,141	26,913
Loss from operations	(6,583)	(8,974)
Other income, net	280	209
Loss from operations before provision for income taxes	(6,303)	(8,765)
Provision for income taxes	26	48
Net loss	$ (6,329)	$ (8,813)
Net loss per share:
Basic	$ (0.46)	$ (0.64)
Diluted	$ (0.46)	$ (0.64)
Weighted average shares used in computing net loss per common share:
Basic	13,842	13,707
Diluted	13,842	13,707