Goodwill and Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Goodwill [Line Items]
Goodwill	$ 9,574	$ 14,350
Working capital adjustment reduction of purchase price			$ 2,360
Deferred tax adjustment, addition to goodwill of acquisition	1,546
Goodwill, purchase accounting adjustments	(814)	108
Amortization expense	20,488	13,052	$ 10,310
INF
Goodwill [Line Items]
Goodwill, purchase accounting adjustments	$ (814)	$ 108