Commitments and Contingencies - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018
Commitments And Contingencies Disclosure [Abstract]
Operating lease, expenses	$ 1.4	$ 1.3
Lease expiration date	Feb. 28, 2022
Operating lease, weighted average remaining lease term	2 years 2 months 12 days
Operating lease, weighted average discount rate	5.40%
Royalties pay equivalent to Percentage of sales	5.00%
Royalty expense	$ 0.4	$ 0.3
Late termination date of certain license agreement	2021