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Note 23 - Loss Per Share (Tables)
 12 Months Ended
Dec. 31, 2020
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
    Year Ended December 31,
    2020   2019
    US$('000)   US$('000)
         
Net loss attributable to ZW Data Action Technologies Inc. (numerator for basic and diluted loss per share)   $
(5,216
 )   $
(1,261
 )
                 
Weighted average number of common shares outstanding – Basic and diluted    
21,602,107
      
17,130,335
  
                 
Loss per share -Basic and diluted   $
(0.24
 )   $
(0.07
 )