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Significant Concentrations (Tables)
12 Months Ended
Sep. 30, 2013
SCHEDULE OF CUSTOMER ACCOUNTED FOR MORE THAN 10% OF THE COMPANY'S TOTAL TRADE ACCOUNTS RECEIVABLE [Table Text Block]
      2012     2013  
                           
  Dongguan Yulong Telecom Technology Co., Ltd. $  *     *   $ 21,269,794     11.4%  
SCHEDULE OF REVENUE BY MAJOR CUSTOMERS BY REPORTING SEGMENTS [Table Text Block]
      2012     2013  
                           
  Shenzhen DRN Battery Co., Ltd. $  **     **   $ 5,787,787     11.6%  
  Beijing Beny Wave Technology Ltd. $  **     **   $ 6,811,680     13.7%