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Employee Benefit Plans (Tables)
3 Months Ended
Apr. 02, 2016
Compensation and Retirement Disclosure [Abstract]  
Schedule of Net Benefit Costs [Table Text Block]


Three Months Ended


April 2,


March 28,


2016


2015

Interest cost

$

64


$

70 

Amortization of prior service benefit

-


(23)

Amortization of actuarial loss

 

23


 

30

Net periodic postretirement benefit cost

$

 87


$

  77