Unaudited Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 29, 2025	Jun. 30, 2024	Jun. 29, 2025	Jun. 30, 2024
Revenue	$ 3,687	$ 4,096	$ 8,012	$ 9,765
Cost of revenue	2,733	1,854	5,181	3,719
Gross profit	954	2,242	2,831	6,046
Operating expenses:
Research and development	1,193	1,347	2,461	2,668
Selling, general and administrative	1,962	2,095	4,498	4,446
Impairment charges	300	0	300	0
Restructuring costs	21	0	75	0
Total operating expenses	3,476	3,442	7,334	7,114
Operating income (loss)	(2,522)	(1,200)	(4,503)	(1,068)
Interest expense	(108)	(39)	(205)	(108)
Interest income and other income (expense), net	(30)	4	(37)	21
Income (loss) from continuing operations before income taxes	(2,660)	(1,235)	(4,745)	(1,155)
(Benefit from) provision for income taxes	1	(6)	6	1
Net income (loss) from continuing operations	(2,661)	(1,229)	(4,751)	(1,156)
Net income (loss) from discontinued operations, net of taxes	(9)	(321)	(110)	(286)
Net income (loss)	$ (2,670)	$ (1,550)	$ (4,861)	$ (1,442)
Net income (loss) from continuing operations per share:
Basic (in dollars per share)	$ (0.17)	$ (0.09)	$ (0.3)	$ (0.08)
Diluted (in dollars per share)	(0.17)	(0.09)	(0.3)	(0.08)
Basic (in dollars per share)	(0.17)	(0.11)	(0.31)	(0.1)
Diluted (in dollars per share)	$ (0.17)	$ (0.11)	$ (0.31)	$ (0.1)
Weighted average shares outstanding:
Basic (in shares)	15,884	14,439	15,677	14,308
Diluted (in shares)	15,884	14,439	15,677	14,308