v3.26.3
Disaggregation of Sales, Geographic Sales and Product Sales - Additional Information (Details)
$ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Oct. 02, 2026
USD ($)
Sep. 26, 2025
USD ($)
Oct. 02, 2026
USD ($)
Segment
Sep. 26, 2025
USD ($)
Jan. 02, 2026
Apr. 30, 2025
Distributor
Mar. 28, 2025
Country
Geographic and Product Data [Line Items]              
Number of countries in which Company operates | Country             85
Net sales $ 83,411 $ 94,732 $ 270,468 $ 181,641      
Number of operating segments | Segment     1        
Number of reportable segments | Segment     1        
Consignment Sales [Member]              
Geographic and Product Data [Line Items]              
Net sales 7,913 31,737 $ 38,558 43,270      
China [Member]              
Geographic and Product Data [Line Items]              
Number of distributors | Distributor           2  
China [Member] | Consignment Sales [Member]              
Geographic and Product Data [Line Items]              
Net sales $ 5,547 $ 27,969 $ 27,701 $ 30,754      
Sales Revenue, Net | Geographic Concentration Risk [Member] | Other than China and Japan [Member] | Maximum              
Geographic and Product Data [Line Items]              
Concentration risk, percentage     10.00%        
Sales Revenue, Net | Geographic Concentration Risk [Member] | China [Member]              
Geographic and Product Data [Line Items]              
Concentration risk, percentage 47.00% 59.00% 51.00% 33.00%      
Sales Revenue, Net | Product Concentration Risk [Member] | Ophthalmic Surgical Product [Member]              
Geographic and Product Data [Line Items]              
Concentration risk, percentage     100.00%        
Accounts Receivable [Member] | Geographic Concentration Risk [Member] | China [Member]              
Geographic and Product Data [Line Items]              
Concentration risk, percentage     61.00%   33.00%