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Share-based compensation (Tables)
3 Months Ended
Mar. 31, 2013
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]  
Schedule of Share-Based Compensation by Line Item in Condensed Consolidated Statements of Operations

The following table shows the detail of share-based compensation by line item in the condensed consolidated statements of operations:

 

     Three Months Ended
March 31,
 

(US$ in thousands)

   2013      2012  

Cost of sales

   $ 287       $ 176   

Sales and marketing

     436         445   

General and administrative

     1,175         770   

Research and development

     45         42   
  

 

 

    

 

 

 

Total

   $ 1,943       $ 1,433