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Note 12 - Property, Plant and Equipment (Tables)
6 Months Ended
Jul. 01, 2018
Notes Tables  
Property, Plant and Equipment [Table Text Block]
   
July
1,
   
December 31,
 
   
201
8
   
201
7
 
   
(Unaudited)
   
 
 
 
                 
Land and land improvements
  $
219
    $
219
 
Buildings and building improvements
   
11,121
     
11,140
 
Machinery, equipment, furniture and fixtures
   
48,331
     
49,726
 
Construction in progress
   
1,533
     
998
 
     
61,204
     
62,083
 
                 
Accumulated depreciation
   
(46,364
)    
(46,509
)
    $
14,840
    $
15,574