NATURE OF OPERATIONS AND ACCOUNTING POLICIES. - Assets HFS (Details)	12 Months Ended
	Dec. 31, 2016 USD ($) item	Dec. 26, 2015 USD ($) item	Dec. 27, 2014 USD ($)
Goshen
Assets Held For Sale
Number of parcels held for sales | item	2	2
Real Estate And Equipment
Evaluation of Impairment of Long-Lived Assets
Non-cash charges to reflect impairment | $	$ 0	$ 0	$ 0