Business Segments (Tables)

6 Months Ended

Jun. 28, 2015

Segment Reporting [Abstract]

Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]

Net sales and net property, plant and equipment by geographic area are summarized below.

(Dollars in thousands)	Thirteen Weeks Ended				Twenty-six Weeks Ended
Net sales:	June 28, 2015		June 29, 2014		June 28, 2015		June 29, 2014
U.S.	41,708		73,583		85,327		$	138,068
Mexico	142,232		125,383		272,342		244,288
Consolidated net sales	$	183,940	$	198,966	$	357,669	$	382,356
Property, plant and equipment, net:					June 28, 2015		December 28, 2014
U.S.					$	48,118	$	55,120
Mexico					199,531		199,915
Consolidated property, plant and equipment, net					$	247,649	$	255,035