Summary of Significant Accounting Policies - Reconciliation of Changes in Deferred Revenue (Details) - USD ($) $ in Thousands	9 Months Ended
	Oct. 02, 2021	Sep. 26, 2020	Jan. 02, 2021	[1]
Reconciliation of the changes in the Company's deferred revenue balance
Balance, beginning of period	$ 1,227	$ 1,810
Additions to deferral	12,884	1,067
Revenue recognized	(1,662)	(1,516)
Deductions from reserves		(3)
Balance, end of period	12,449	1,358
Non-current portion of deferred revenue	10,199	286	$ 289
Current portion of deferred revenue	$ 2,250	$ 1,072	$ 938

[1] Derived from the audited consolidated financial statements included in the Annual Report on Form 10-K filed with the SEC for the year ended January 2, 2021.