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Related Party - Topcon - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2025	Sep. 28, 2024	Sep. 27, 2025	Sep. 28, 2024	Dec. 28, 2024
Related Party Transaction [Line Items]
Total revenues	$ 12,484	$ 11,581	$ 37,951	$ 35,973
Receivable from related party	7,132		7,132		$ 5,951
Payable to related party	$ 4,409		$ 4,409		6,985
Topcon [Member]
Related Party Transaction [Line Items]
Ownership percentage	10.00%		10.00%
Topcon America Corporation [Member]
Related Party Transaction [Line Items]
Total revenues	$ 3,900	3,800	$ 12,000	12,000
Purchases from related party	100		400
Topcon America Corporation [Member] \| Related Party [Member]
Related Party Transaction [Line Items]
Receivable from related party	2,400		2,400		2,500
Payable to related party	200		200		$ 600
Distribution Rights [Member]
Related Party Transaction [Line Items]
Revenue Recognized	400	400	1,100	1,100
Distribution Rights [Member] \| Topcon America Corporation [Member]
Related Party Transaction [Line Items]
Revenue Recognized	$ 400	$ 400	$ 1,100	$ 1,100