Description of Business and Summary of Significant Accounting Policies (Details 1) - USD ($) $ in Thousands	7 Months Ended	12 Months Ended
	Dec. 31, 2015	Dec. 28, 2017	Dec. 29, 2016	May 28, 2015
Summary of Significant Accounting Policies [Line Items]
Balance at beginning of period	$ 43,720	$ 43,735	$ 44,220	$ 43,858
Acquisition	581	0	0	0
Sale	0	(105)	0	0
Other	0	0	(347)	0
Deferred tax adjustment	(81)	(138)	(138)	(138)
Balance at end of period	$ 44,220	$ 43,492	$ 43,735	$ 43,720