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Note 2 - Discontinued Operations (Tables)
 12 Months Ended
Dec. 31, 2019
Notes Tables  
Disposal Groups, Including Discontinued Operations [Table Text Block]
   
Twelve Months
  
   
Ended
  
   
Dec.
3
1
,
    
Dec.
3
1
,
  
   
201
9
    
2018
  
Net sales
  
$
-
    
$
6,787
  
Cost of sales
  
 
-
    
 
(6,485
)
Selling, general and administrative expenses
  
 
-
    
 
(2,448
)
Loss on sale of assets
  
 
-
    
 
(865
)
Loss from discontinued operations before income taxes
  
 
-
    
 
(3,011
)
Income tax benefit
  
 
-
    
 
-
  
Loss from discontinued operations, net of taxes
  
$
-
    
$
(3,011
)