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Inventories
12 Months Ended
Sep. 30, 2016
Inventories [Text Block]
5.

Inventories

Inventories as of September 30, 2015 and 2016 consisted of the following:

      2015     2016  
  Raw materials $ 712,713   $ 3,760,481  
  Work in progress   1,441,368     2,153,945  
  Finished goods   903,494     10,625,826  
    $ 3,057,575   $ 16,540,252  

During the years ended September 30, 2015 and 2016, write-downs of obsolete inventories to lower of cost or market of $221,172 and $439,068, respectively, were charged to cost of revenues.