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Employee Benefit Plans (Tables)
 3 Months Ended
Mar. 28, 2015
Defined Contribution Pension and Other Postretirement Plans Disclosure [Abstract]  
Schedule of Net Benefit Costs [Table Text Block]
Components of net periodic benefit cost (credit) for all postretirement plans are summarized as follows:
 
Three Months Ended
 
March 28,
2015
 
March 29,
2014
Service cost
$
2

 
$
2

Interest cost
5

 
5

Amortization of prior service credits
(22
)
 
(22
)
Recognized net actuarial gains
(9
)
 
(10
)
Net periodic benefit cost (credit)
$
(24
)
 
$
(25
)