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Note 7 - Intangible Assets (Tables)
 12 Months Ended
Dec. 31, 2019
Notes Tables  
Schedule of Intangible Assets and Goodwill [Table Text Block]
   
Gross Carrying
    
Accumulated
    
Intangible
  
   
Amount
    
Amortization
    
Assets, Net
  
As of December 31, 2019
  
 
 
 
  
 
 
 
  
 
 
 
Customer relationships
   $
1,378
     $
(827
 )   $
551
  
Trade names and trademarks
    
1,132
      
(452
 )    
680
  
Total
   $
2,510
     $
(1,279
 )   $
1,231
  
                         
As of December 31, 2018
  
 
 
 
  
 
 
 
  
 
 
 
Customer relationships
   $
1,378
     $
(689
 )   $
689
  
Trade names and trademarks
    
1,132
      
(377
 )    
755
  
Backlog
    
200
      
(91
 )    
109
  
Total
   $
2,710
     $
(1,157
 )   $
1,553
  
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]
Year ending December 31,
  
 
 
 
2020
   $
213
  
2021
    
213
  
2022
    
213
  
2023
    
213
  
2024
    
75
  
Thereafter
    
304
  
    $
1,231