STOCKHOLDERS' EQUITY (Schedule of Reclassification from Accumulated Other Comprehensive Loss) (Details) - Amount Reclassified from Accumulated Other Comprehensive Loss [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 27, 2015	Dec. 28, 2014
Amortization of pension and other postretirement plan actuarial losses:
Total before tax	$ (213)	$ 506
Tax benefit (expense)	80	(191)
Total reclassification for the period	(133)	315
Selling, general and administrative expenses [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Realized gain on sale of securities	476	562
Selling, general and administrative expenses [Member] | Legacy Gold Kist Plans [Member]
Amortization of pension and other postretirement plan actuarial losses:
Amortization of pension and other postretirement plan actuarial losses	(474)	(37)
Cost of goods sold [Member] | Union Plan [Member]
Amortization of pension and other postretirement plan actuarial losses:
Amortization of pension and other postretirement plan actuarial losses	0	0
Cost of goods sold [Member] | Legacy Gold Kist Plans [Member]
Amortization of pension and other postretirement plan actuarial losses:
Amortization of pension and other postretirement plan actuarial losses	$ (215)	$ (19)