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Note 9 - Property, Plant and Equipment (Tables)
3 Months Ended
Apr. 03, 2016
Notes Tables  
Property, Plant and Equipment [Table Text Block]
 
 
April 3,
 
 
December 31,
 
 
 
2016
 
 
2015
 
 
 
(Unaudited)
 
 
 
Land and land improvements
  $ 219     $ 219  
Buildings and building improvements
    18,305       18,305  
Machinery, equipment, furniture and fixtures
    127,135       123,935  
Construction in progress
    717       759  
      146,376       143,218  
Accumulated depreciation
    (122,218 )     (121,040 )
    $ 24,158     $ 22,178