Employee Benefit Plans (Tables)

6 Months Ended

Jun. 28, 2014

Compensation and Retirement Disclosure [Abstract]

Schedule of Costs of Retirement Plans [Table Text Block]

	Three Months Ended				Six Months Ended
	June 28, 2014		June 29, 2013		June 28, 2014		June 29, 2013
Interest cost	$	28	$	25	$	55	$	50
Amortization of prior service benefit		(38)		(42)		(76)		(84)
Amortization of accumulated loss		4		8		7		17
Net periodic postretirement benefit income	$	(6)	$	(9)	$	(14)	$	(17)