CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE OPERATIONS - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 28, 2025	Jun. 29, 2024	Jun. 28, 2025	Jun. 29, 2024
CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE OPERATIONS
Net sales		$ 151,949	$ 144,270	$ 299,327	$ 310,559
Cost of sales	[1]	102,170	95,877	202,201	208,247
Gross profit		49,779	48,393	97,126	102,312
Operating expense		62,196	57,121	124,689	117,557
Loss from operations		(12,417)	(8,728)	(27,563)	(15,245)
Other income (expense):
Other income, net		181	354	441	791
Interest expense		(385)	(286)	(642)	(586)
Total other (loss) income, net		(204)	68	(201)	205
Loss before income taxes		(12,621)	(8,660)	(27,764)	(15,040)
Income tax provision		90	27	230	125
Net loss		(12,711)	(8,687)	(27,994)	(15,165)
Other comprehensive gain:
Foreign currency adjustments		0	0	0	87
Total other comprehensive gain		0	0	0	87
Comprehensive loss		$ (12,711)	$ (8,687)	$ (27,994)	$ (15,078)
Net loss per share:
Basic net loss per share (in dollars per share)		$ (0.23)	$ (0.15)	$ (0.47)	$ (0.27)
Diluted net loss income per share (in dollars per share)		$ (0.23)	$ (0.15)	$ (0.47)	$ (0.27)
Weighted-average common shares outstanding:
Shares used in computation of basic net loss per share (in shares)		55,894	56,851	60,176	56,677
Shares used in computation of diluted net (loss) income per share (in shares)		55,894	56,851	60,176	56,677

[1] Excludes depreciation and amortization expense which is included in operating expense.