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Intangible Assets, net (Tables)
 6 Months Ended
Jun. 30, 2017
SDCHEDULE OF INTANGIBLE ASSETS [Table Text Block]
      December 31,     June 30,  
      2016     2017  
  Computer software at cost $ 25,613   $ 26,233  
  Accumulated amortization   (4,269 )   (5,684 )
    $ 21,344   $ 20,549