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Note 8 - Property and Equipment (Tables)
 12 Months Ended
Dec. 31, 2019
Notes Tables  
Property, Plant and Equipment [Table Text Block]
   
December 31,
 
   
2019
    
2018
  
                 
Land, building, and improvements
   $
9,495
     $
9,039
  
Machinery and equipment
    
1,482
      
5,745
  
Computer equipment
    
272
      
282
  
Office equipment, furnishings, and improvements
    
63
      
181
  
Total
    
11,312
      
15,247
  
Accumulated depreciation
    
(2,493
 )    
(3,480
 )
Total property and equipment, net
   $
8,819
     $
11,767