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Significant Concentrations (Tables)
3 Months Ended 6 Months Ended
Mar. 31, 2014
Mar. 31, 2014
SCHEDULE OF CUSTOMER ACCOUNTED FOR MORE THAN 10% OF THE COMPANY'S TOTAL TRADE ACCOUNTS RECEIVABLE [Table Text Block]  
  September 30, 2013      March 31, 2014  
Shenzhen DRN Battery Co., Ltd. $ 7,365,219     14.77%   $  *     *  
Beijing Beny Wave Technology Ltd.   6,811,680     13.66%     5,305,866     11.45%  
SCHEDULE OF REVENUE BY MAJOR CUSTOMERS BY REPORTING SEGMENTS [Table Text Block]
  Three months ended March 31,
  2013   2014
Jiangsu Huatiantong Technology Limited. $  *     *   $ 3,477,100     10.14%  
Dongguan Yulong Telecom Technology Co., Ltd.   *     *     3,720,890     10.85%  
    Six months ended March 31,
  2013   2014  
Jiangsu Huatiantong Technology Limited. $  *     *   $ 8,281,999     10.80%  
Tinno Mobile Techonlogy Company Limited.   *     *     9,491,721     12.38%  
Dongguan Yulong Telecom Technology Co., Ltd.   12,628,627     11.71%     *     *  
Shenzhen Fuheqing Industrial Development Co., Ltd   10,824,312     10.04%     *     *  
                     
*Comprised less than 10% of net revenue for the respective periods.