BASIS OF PRESENTATION AND OPINION OF MANAGEMENT (Details)	3 Months Ended
	Mar. 26, 2016	Mar. 28, 2015
Basis of presentation and opinion of management
Length of fiscal quarters	91 days	91 days
Minimum
Basis of presentation and opinion of management
Length of fiscal years	364 days
Maximum
Basis of presentation and opinion of management
Length of fiscal years	371 days