CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Statement [Abstract]
Net sales	$ 420,457	$ 542,751	$ 601,602
Cost of sales	322,897	390,459	428,586
Gross profit	97,560	152,292	173,016
Research and development expenses	31,281	32,452	30,917
Factory restructuring charges	4,015	0	0
Selling, general and administrative expenses	98,490	105,292	118,846
Goodwill impairment	49,075	0	0
Operating income (loss)	(85,301)	14,548	23,253
Interest income (expense), net	(4,332)	(2,200)	(566)
Loss on sale of Argentina subsidiary	0	0	(6,050)
Other income (expense), net	(2,621)	(955)	(557)
Income (loss) before provision for income taxes	(92,254)	11,393	16,080
Provision for income taxes	5,984	10,986	10,779
Net income (loss)	$ (98,238)	$ 407	$ 5,301
Earnings (loss) per share:
Basic (in dollars per share)	$ (7.64)	$ 0.03	$ 0.39
Diluted (in dollars per share)	$ (7.64)	$ 0.03	$ 0.39
Shares used in computing earnings (loss) per share:
Basic (in shares)	12,855	12,703	13,465
Diluted (in shares)	12,855	12,779	13,742