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Note 7 - Property and Equipment, Net (Tables)
 12 Months Ended
Dec. 31, 2016
Notes Tables  
Property, Plant and Equipment [Table Text Block]
    December 31,  
    2016     2015  
Equipment    
7,002
      
7,203
  
Furniture, fixture, and fittings and other    
3,500
      
2,974
  
Total gross value    
10,502
      
10,177
  
Less: accumulated depreciation and amortization    
(7,732
 )    
(8,055
 )
Total    
2,770
      
2,123