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Note 6 - Goodwill and Intangible Assets (Tables)
 12 Months Ended
Dec. 31, 2016
Notes Tables  
Schedule of Intangible Assets and Goodwill [Table Text Block]
 
 
Gross Carrying
 
 
Accumulated
 
 
Intangible
 
 
 
Amount
 
 
Amortization
 
 
Assets, Net
 
As of December 31, 2016
 
 
 
 
 
 
 
 
 
 
 
 
Customer relationships
   $
1,378
    $
(413
 )   $
965
 
Patents
    
1,162
     
(697
 )    
465
 
Trade names and trademarks
    
1,132
     
(226
 )    
906
 
Other (1)
    
295
     
(233
 )    
62
 
Total
   $
3,967
    $
(1,569
 )   $
2,398
 
                         
As of December 31, 2015
 
 
 
 
 
 
 
 
 
 
 
 
Customer relationships
   $
1,378
    $
(275
 )   $
1,103
 
Patents
    
1,162
     
(465
 )    
697
 
Trade names and trademarks
    
1,132
     
(151
 )    
981
 
Other (1)
    
295
     
(155
 )    
140
 
Total
   $
3,967
    $
(1,046
 )   $
2,921
 
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]
Year ending December 31,
 
 
 
 
2017
   $
495
 
2018
    
459
 
2019
    
213
 
2020
    
213
 
2021
    
213
 
Thereafter
    
805
 
    $
2,398