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Note 12 - Lease Obligations (Tables)
12 Months Ended
Dec. 31, 2018
Notes Tables  
Schedule of Future Minimum Lease Payments for Capital Leases [Table Text Block]
    December 31,
2019    
401
 
2020    
361
 
2021    
252
 
2022    
170
 
2023 and thereafter    
89
 
Total minimum lease payments    
1273
 
Less: amount representing interest      
(39
)
Present value of minimum lease payments    
1,234
 
Less: current portion    
(383
)
Long-term portion    
852
 
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]
    France   Japan   USA   Italy
                 
2019    
329
     
227
     
45
     
37
 
2020    
329
     
167
     
45
     
37
 
2021    
329
     
132
     
4
     
37
 
2022    
329
     
39
     
     
25
 
2023 and thereafter    
822
     
     
     
 
Total    
2,138
     
565
     
94
     
135