Receivables, Net (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	$ 3,936	$ 0	$ 0
Charged to costs and expenses	632	5,102	2,623
Uncollectible accounts written off, net	(3,699)	(1,166)	(2,623)
Balance at end of period	$ 869	$ 3,936	$ 0