Note 6 - Equity
 6 Months Ended
Jun. 30, 2017
Notes to Financial Statements  
Stockholders' Equity Note Disclosure [Text Block]
6.
Equity
 
The movement of equity is as follows
:
 
     
Ordinary
shares
      
Additional
paid-in
capital
      
Accumulated
deficit
      
Accumulated
other
comprehensive
loss
      
Noncontrolling
interests
      
Total

equity
  
                                                 
Balances at January 1, 2017 (audited)    
2
      
44,369
      
(32,128
 )    
(91
 )    
147
      
12,299
  
Issuance of ordinary shares (unaudited)    
-
      
89,443
      
-
      
-
      
-
      
89,443
  
Share-based compensation (unaudited)    
-
      
7,331
      
-
      
-
      
1,425
      
8,756
  
Foreign currency translation loss (unaudited)    
-
      
-
      
-
      
(3
 )    
(2
 )    
(5
 )
Net loss (unaudited)    
-
      
-
      
(60,737
 )    
-
      
(1,850
 )    
(62,587
 )
                                                 
Balances at June 30, 2017 (unaudited)    
2
      
141,143
      
(92,865
 )    
(94
 )    
(280
 )    
47,906
  
                                                 
                                                 
                                                 
                                                 
Balances at January 1, 2016 (audited)    
2
      
29,119
      
(20,118
 )    
(53
 )    
708
      
9,658
  
Foreign currency translation loss (unaudited)    
-
      
-
      
-
      
(23
 )    
(16
 )    
(39
 )
Net loss (unaudited)    
-
      
-
      
(5,389
 )    
-
      
(203
 )    
(5,592
 )
                                                 
Balances at June 30, 2016 (unaudited)    
2
      
29,119
      
(25,507
 )    
(76
 )    
489
      
4,027