FAIR VALUE MEASUREMENTS (Details) - USD ($) $ in Thousands	Jul. 04, 2015	Jan. 03, 2015
Fair Value, Assets Measured on Recurring and Nonrecurring Basis
Asset held for sale	$ 2,056	$ 2,405
Significant Other Observable Inputs (Level 2)
Fair Value, Assets Measured on Recurring and Nonrecurring Basis
Estimated fair value of long-term debt	232,200	191,100
Recurring Basis | Estimated Fair Value
Fair Value, Assets Measured on Recurring and Nonrecurring Basis
Cash equivalents	1,600	5,400
Recurring Basis | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets Measured on Recurring and Nonrecurring Basis
Cash equivalents	1,600	5,400
Recurring Basis | Significant Other Observable Inputs (Level 2)
Fair Value, Assets Measured on Recurring and Nonrecurring Basis
Cash equivalents	0	0
Recurring Basis | Significant Unobservable Inputs (Level 3)
Fair Value, Assets Measured on Recurring and Nonrecurring Basis
Cash equivalents	0	0
Debt
Fair Value, Assets Measured on Recurring and Nonrecurring Basis
Long-term Debt	$ 225,200	$ 177,200