Summary of Significant Accounting Policies - Additional Information (Details)	3 Months Ended		12 Months Ended
	Apr. 02, 2022 USD ($) Customer	Apr. 03, 2021 USD ($) Customer	Jan. 01, 2022 Customer
Disclosure Summary Of Significant Accounting Policies [Line Items]
Service contract warranty period	1 year
Service contract, period to determine nature of sale	60 days
Fair value of distribution right	$ 14,800,000
Arrangement fee	200,000
Amortization costs	0
Deferred revenue recognized	400,000	$ 400,000
Non-current portion of deferred revenue pertains to exclusivity fee deferred revenue	12,300,000
Current portion of deferred revenue pertains to exclusivity fee deferred revenue	$ 1,500,000
Products warranty period	2 years
Revenue, Total | Customer Concentration Risk
Disclosure Summary Of Significant Accounting Policies [Line Items]
Number of customers | Customer		0
Revenue, Total | Topcon | Customer Concentration Risk
Disclosure Summary Of Significant Accounting Policies [Line Items]
Number of customers | Customer	1
Accounts Receivable | Topcon | Customer Concentration Risk
Disclosure Summary Of Significant Accounting Policies [Line Items]
Percentage of accounts receivable accounted	33.00%
Accounts Receivable | Topcon | Customer Concentration Risk | One Customer
Disclosure Summary Of Significant Accounting Policies [Line Items]
Percentage of accounts receivable accounted			31.00%
Accounts Receivable | Topcon | Customer Concentration Risk | One Customer | Minimum
Disclosure Summary Of Significant Accounting Policies [Line Items]
Customer and supplier accounted percentage of total revenues, accounts receivable and purchases	10.00%		10.00%
Accounts Receivable | Topcon | Customer Concentration Risk | Customer Two
Disclosure Summary Of Significant Accounting Policies [Line Items]
Percentage of accounts receivable accounted			11.00%
Accounts Receivable | Topcon | Credit Concentration Risk
Disclosure Summary Of Significant Accounting Policies [Line Items]
Number of customers | Customer	1		2
Revenue, Total | Customer Concentration Risk | No Customer | Minimum
Disclosure Summary Of Significant Accounting Policies [Line Items]
Customer and supplier accounted percentage of total revenues, accounts receivable and purchases		10.00%
Revenue, Total | Topcon | Customer Concentration Risk
Disclosure Summary Of Significant Accounting Policies [Line Items]
Percentage of accounts receivable accounted	30.00%
Revenue, Total | Topcon | Customer Concentration Risk | One Customer | Minimum
Disclosure Summary Of Significant Accounting Policies [Line Items]
Customer and supplier accounted percentage of total revenues, accounts receivable and purchases	10.00%
Prepaid Expenses and Other Current Assets and Other Long Term Assets
Disclosure Summary Of Significant Accounting Policies [Line Items]
Deferred costs, incurred	$ 300,000
Distribution Rights [Member]
Disclosure Summary Of Significant Accounting Policies [Line Items]
Revenue Recognized	$ 300,000
Royalty Agreements
Disclosure Summary Of Significant Accounting Policies [Line Items]
Number of customers | Customer	3