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Note 4 - Cash and cash equivalent
3 Months Ended
Mar. 31, 2013
Cash and Cash Equivalents Disclosure [Text Block]
4.  
Cash and cash equivalent

   
March 31,
2013
   
December 31,
2012
 
   
US$(’000)
   
US$(’000)
 
   
(Unaudited)
       
             
Cash
    801       893  
Bank deposit
    2,991       4,590  
      3,792       5,483