NATURE OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Other Assets (Details)	12 Months Ended
	Jan. 02, 2016 USD ($) item	Jan. 03, 2015 USD ($)
Amortizable intangible assets
Goodwill impairment charges recognized	$ 0	$ 0
Number of aggregate property leases which require royalty payments to which the entity is a party | item	3
Recovery amount due pending outcome of litigation	$ 1,259,000
Restrictive Land Covenant [Member]
Amortizable intangible assets
Useful lives of intangible assets	10 years
Customer Relationships [Member]
Amortizable intangible assets
Useful lives of intangible assets	10 years