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Note 10 - Stockholders' Equity (Tables)
 9 Months Ended
Sep. 30, 2017
Notes Tables  
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
   
Foreign
    
 
 
 
   
Currency
    
 
 
 
   
Translation
    
AOCL
  
Balance at January 1, 2017
   $
(85
 )   $
(85
 )
Foreign currency translation adjustment
    
51
      
51
  
Balance at September 30, 2017
  
$
(34
)
  
$
(34
)