CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 28, 2024	Sep. 30, 2023	Sep. 28, 2024	Sep. 30, 2023
Net revenues:
Total net revenues	$ 28,505	$ 17,915	$ 52,662	$ 39,758
Cost of net revenues:
Total cost of net revenues	21,447	10,916	35,852	25,471
Gross profit	7,058	6,999	16,810	14,287
Operating expenses:
Research and development	3,967	3,720	11,846	11,340
Selling, general and administrative	4,843	4,707	14,433	14,281
Total operating expenses	8,810	8,427	26,279	25,621
Loss from operations	(1,752)	(1,428)	(9,469)	(11,334)
Interest income and other income (expense), net	541	600	3,521	1,922
Loss before provision for income taxes	(1,211)	(828)	(5,948)	(9,412)
Provision for income taxes	962	796	2,189	1,298
Net loss from continuing operations, net of taxes	(2,173)	(1,624)	(8,137)	(10,710)
Income (loss) from discontinued operations, net of tax	0	48	1,095	365
Net loss	$ (2,173)	$ (1,576)	$ (7,042)	$ (10,345)
Net income (loss) per share:
Basic—continuing operations	$ (0.08)	$ (0.06)	$ (0.3)	$ (0.41)
Diluted—continuing operations	(0.08)	(0.06)	(0.3)	(0.41)
Basic—discontinued operations	0	0	0.04	0.01
Diluted—discontinued operations	0	0	0.04	0.01
Basic—net income (loss)	(0.08)	(0.06)	(0.26)	(0.4)
Diluted—net income (loss)	$ (0.08)	$ (0.06)	$ (0.26)	$ (0.4)
Weighted average shares outstanding:
Basic	26,895	26,287	26,695	26,033
Diluted	26,895	26,287	26,695	26,033