CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Income Statement [Abstract]
Net sales	$ 91,900	$ 108,377
Cost of sales	65,912	83,684
Gross profit	25,988	24,693
Research and development expenses	7,821	8,360
Factory restructuring charges	1,064	0
Selling, general and administrative expenses	24,011	26,782
Goodwill impairment	0	49,075
Operating income (loss)	(6,908)	(59,524)
Interest income (expense), net	(922)	(975)
Other income (expense), net	(80)	(214)
Income (loss) before provision for income taxes	(7,910)	(60,713)
Provision for income taxes	739	650
Net income (loss)	$ (8,649)	$ (61,363)
Earnings (loss) per share:
Basic (in dollars per share)	$ (0.67)	$ (4.81)
Diluted (in dollars per share)	$ (0.67)	$ (4.81)
Shares used in computing earnings (loss) per share:
Basic (in shares)	12,902	12,749
Diluted (in shares)	12,902	12,749