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Note 24 - Share-based Compensation Expenses (Tables)
 12 Months Ended
Dec. 31, 2020
Notes Tables  
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]
    Year Ended December 31,
    2020   2019
    US$('000)   US$('000)
         
Sales and marketing expenses    
122
      
-
  
General and administrative expenses    
1,884
      
393
  
Research and development expenses    
146
      
-
  
Total    
2,152
      
393
  
Share-based Payment Arrangement, Option, Activity [Table Text Block]
    Option Outstanding   Option Exercisable
    Number of underlying shares   Weighted
Average
Remaining
Contractual
Life (Years)		   Weighted
Average
Exercise
Price		   Number of underlying shares   Weighted
Average
Remaining
Contractual
Life (Years)		   Weighted
Average
Exercise
Price
                         
Balance, January 1, 2019    
835,216
      
2.04
     $
2.49
      
835,216
      
2.04
     $
2.49
  
Granted/Vested    
-
      
 
      
 
      
-
      
 
      
 
  
Forfeited    
-
      
 
      
 
      
-
      
 
      
 
  
Expired    
(80,000
 )    
 
     $
3.08
      
(80,000
 )    
 
     $
3.08
  
Exercised    
-
      
 
      
 
      
-
      
 
      
 
  
Balance, December 31, 2019    
755,216
      
1.15
     $
2.43
      
755,216
      
1.15
     $
2.43
  
Granted/Vested    
-
      
 
      
 
      
-
      
 
      
 
  
Forfeited    
-
      
 
      
 
      
-
      
 
      
 
  
Expired    
(477,240
 )    
 
     $
2.10
      
(477,240
 )    
 
     $
2.10
  
Exercised    
-
      
 
      
 
      
-
      
 
      
 
  
Balance, December 31, 2020    
277,976
      
0.91
     $
3.00
      
277,976
      
0.91
     $
3.00