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Note 5 - Accounts Receivable, Net (Tables)
 6 Months Ended
Jun. 30, 2015
Accounts Receivable Disclosure [Abstract]  
Schedule Of Accounts Receivable [Table Text Block]
    June 30,
2015		   December 31,
2014
    US$(’000)   US$(’000)
    (Unaudited)    
         
Accounts receivable     7,056       5,429  
Allowance for doubtful accounts     (2,947 )     (3,022 )
Accounts receivable, net     4,109       2,407