Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 29, 2021	Jun. 30, 2020	Jun. 29, 2021	Jun. 30, 2020
Income Tax Disclosure [Abstract]
Provision for income taxes	$ 29	$ 33	$ 19	$ 46
Effective tax rate	0.50%	(0.20%)	0.50%	(0.20%)