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Defined Benefit Pension Plans (Tables)
6 Months Ended
Jun. 29, 2018
Defined Benefit Plan [Abstract]  
Schedule of Net Benefit Costs [Table Text Block]
The Company has defined benefit plans covering employees of its Switzerland and Japan operations. The following table summarizes the components of net periodic pension cost recorded for the Company’s defined benefit pension plans (in thousands):
 
  
Three Months Ended
  
Six Months Ended
 
  
June 29, 2018
  
June 30, 2017
  
June 29, 2018
  
June 30, 2017
 
Service cost
(1)
 $139  $129  $277  $258 
Interest cost
(2)
  15   14   29   28 
Expected return on plan assets
(2)
  (28)  (24)  (54)  (47)
Net amortization of transitional obligation
(2),(3)
  2   3   5   6 
Prior service credit
(2),(3)
  (5)  (2)  (11)  (4)
Actuarial loss recognized in current period
(2),(3)
  29   18   57   35 
Net periodic pension cost $152  $138  $303  $276 
 
 
(1)
Recognized in selling general and administrative expenses on the Condensed Consolidated Statements of Operations.
(2)
For 2018, recognized in other income, net, and for 2017, recognized in selling, general and administrative on the Condensed Consolidated Statements of Operations.
(3)
Amounts reclassified from accumulated other comprehensive loss.
 
 
Schedule of Defined Benefit Plans Disclosures [Table Text Block]
The Company currently is not required to and does not make contributions to its Japan pension plan. The Company’s contributions to its Swiss pension plan is as follows (in thousands):
 
  
Three Months Ended
  
Six Months Ended
 
  
June 29, 2018
  
June 30, 2017
  
June 29, 2018
  
June 30, 2017
 
Employer contribution $79  $67  $145  $131