XML 22 R10.htm IDEA: XBRL DOCUMENT v3.8.0.1
Inventories
9 Months Ended
Sep. 30, 2017
Inventories [Text Block]
4.

Inventories

Inventories as of December 31, 2016 and September 30, 2017 consisted of the following:

 

 

  December 31,     September 30,  
 

 

  2016     2017  
 

Raw materials

$ 2,570,942   $ 1,999,072  
 

Work in progress

  1,333,949     4,756,237  
 

Finished goods

  13,190,031     11,491,962  
 

 

$ 17,094,922   $ 18,247,271  

During the three months ended September 30, 2016 and 2017, write-downs of obsolete inventories to lower of cost or net realizable value of $83,650 and $360,778, respectively, were charged to cost of revenues.

During the nine months ended September 30, 2016 and 2017, write-downs of obsolete inventories to lower of cost or net realizable value of $296,943 and $1,359,181, respectively, were charged to cost of revenues.