Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2023	Jan. 01, 2023	Jan. 02, 2022
Revenue	$ 21,198	$ 16,180	$ 12,685
Cost of revenue	6,711	7,378	5,266
Gross profit	14,487	8,802	7,419
Operating expenses:
Research and development	6,448	5,001	6,927
Selling, general and administrative	7,969	7,601	8,008
Operating income (loss)	70	(3,800)	(7,516)
Interest expense	(215)	(148)	(130)
Gain on forgiveness of PPP Loan	0	0	1,192
Interest income and other (expense) income, net	(116)	(221)	(43)
Income (loss) before income taxes	(261)	(4,169)	(6,497)
Provision for income taxes	2	98	119
Net income (loss)	$ (263)	$ (4,267)	$ (6,616)
Net income (loss) per share: (1)
Basic and diluted (in dollars per share)	$ (0.02)	$ (0.34)	$ (0.57)
Weighted average shares: (1)
Basic and diluted (in shares)	13,453	12,588	11,535

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

Name:	us-gaap_CostOfGoodsAndServicesSold
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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