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Note 9 - Property, Plant and Equipment (Tables)
12 Months Ended
Dec. 31, 2019
Notes Tables  
Property, Plant and Equipment [Table Text Block]
   
December 31,
 
   
2019
   
2018
 
Land and land improvements
  $
50
    $
219
 
Buildings and building improvements
   
8,108
     
11,178
 
Machinery, equipment, furniture and fixtures
   
55,520
     
59,179
 
Construction in progress
   
371
     
2,141
 
     
64,049
     
72,717
 
Accumulated depreciation
   
(52,374
)    
(58,062
)
    $
11,675
    $
14,655
 
   
December 31,
 
   
2019
   
2018
 
Buildings and building improvements
  $
3,128
    $
2,995
 
Machinery, equipment, furniture and fixtures
   
1,546
     
1,277
 
     
4,674
     
4,272
 
Accumulated depreciation
   
(1,495
)    
(976
)
    $
3,179
    $
3,296