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Number of distributors.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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The number of countries in which the entity operates as of balance sheet date.

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Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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Disaggregation of Sales, Geographic Sales and Product Sales - Additional Information (Details)	3 Months Ended		6 Months Ended		12 Months Ended
	Jul. 03, 2026 USD ($)	Jun. 27, 2025 USD ($)	Jul. 03, 2026 USD ($) Segment	Jun. 27, 2025 USD ($)	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	$ 93,535,000	$ 44,320,000	$ 187,057,000	$ 86,909,000
Number of operating segments \| Segment			1
Number of reportable segments \| Segment			1
Consignment Sales [Member]
Geographic and Product Data [Line Items]
Net sales	12,611,000	6,795,000	$ 30,645,000	11,533,000
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	$ 9,520,000	$ 2,785,000	$ 22,154,000	$ 2,785,000
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	56.00%	12.00%	53.00%
Sales Revenue, Net \| Geographic Concentration Risk [Member] \| Korea [Member]
Geographic and Product Data [Line Items]
Concentration risk, percentage				14.00%
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			65.00%		33.00%