STOCKHOLDERS' EQUITY (Schedule of Reclassification from Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 28, 2015	Jun. 29, 2014
Amortization of defined benefit pension and other postretirement plan actuarial losses:
Total reclassification for the period	$ (159)	$ 81
Amount Reclassified from Accumulated Other Comprehensive Loss [Member]
Amortization of defined benefit pension and other postretirement plan actuarial losses:
Total before tax	(256)	129
Tax benefit (expense)	97	(48)
Total reclassification for the period	(159)	81
Amount Reclassified from Accumulated Other Comprehensive Loss [Member] | Selling, general and administrative expenses [Member]
Amortization of defined benefit pension and other postretirement plan actuarial losses:
Realized gain on sale of securities	101	157
Amount Reclassified from Accumulated Other Comprehensive Loss [Member] | Union Plan [Member] | Cost of sales [Member]
Amortization of defined benefit pension and other postretirement plan actuarial losses:
Amortization of defined benefit pension and other postretirement plan actuarial losses	(12)	0
Amount Reclassified from Accumulated Other Comprehensive Loss [Member] | Legacy Gold Kist Plans [Member] | Selling, general and administrative expenses [Member]
Amortization of defined benefit pension and other postretirement plan actuarial losses:
Amortization of defined benefit pension and other postretirement plan actuarial losses	(237)	(28)
Amount Reclassified from Accumulated Other Comprehensive Loss [Member] | Legacy Gold Kist Plans [Member] | Cost of sales [Member]
Amortization of defined benefit pension and other postretirement plan actuarial losses:
Amortization of defined benefit pension and other postretirement plan actuarial losses	$ (108)	$ 0