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Note 17 - Employee Benefit Plans (Tables)
3 Months Ended
Apr. 02, 2017
Notes Tables  
Schedule of Net Benefit Costs [Table Text Block]
 
 
Three Months Ended
 
 
 
April 2,
   
April 3,
 
 
 
2017
   
2016
 
 
 
(Unaudited)
 
Service cost
  $
2
    $
3
 
Interest cost on projected benefit obligation
   
388
     
426
 
Net amortizations of actuarial loss
   
183
     
174
 
Expected return on plan assets
   
(415
)    
(496
)
Net periodic benefit cost   $
158
    $
107