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Note 11 - Other Accrued Liabilities (Tables)
12 Months Ended
Dec. 31, 2018
Notes Tables  
Schedule of Accrued Liabilities [Table Text Block]
    December 31,
    2018   2017
Retirement indemnities    
2,287
     
2,076
 
Provision for warranty costs    
547
     
449
 
Accruals for payroll and associated taxes    
680
     
611
 
Conditional government advances    
1,039
     
1,039
 
Value added tax payable    
327
     
125
 
Advances received from customers    
115
     
108
 
Provision for Asset Retirement Obligation (Japan)    
118
     
100
 
Provision for employee termination indemnities (Italy)    
369
     
349
 
Provision for employee termination indemnities (Korea)    
30
     
 
Others    
411
     
360
 
Total    
5,923
     
5,217
 
Less non-current portion    
(3,800
)    
(3,681
)
Current portion    
2,122
     
1,536
 
Schedule of Conditional Advances [Table Text Block]
2019    
 
2020    
 
2021    
 
2022    
203
 
2023 and thereafter    
836
 
Total    
1,039
 
Schedule of Product Warranty Liability [Table Text Block]
    December 31,
    2018   2017
Beginning of year    
449
     
548
 
Amount used during the year    
(335
)    
(415
)
New warranty expenses    
433
     
316
 
End of year    
547
     
449
 
Less current portion    
(356
)    
(265
)
Long term portion    
191
     
184