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Inventories | 12 Months Ended
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Dec. 31, 2017
Inventories [Text Block] |
6. | Inventories
Inventories as of September 30, 2016, December 31, 2016 and 2017 consisted of the following:
|  | September 30, |  |  | December 31, |  |  | December 31, |
|  | 2016 |  |  | 2016 |  |  | 2017 |
Raw materials | $ | 3,760,481 |  | $ | 2,570,942 |  | $ | 1,814,704 |
Work in progress |  | 2,153,945 |  |  | 1,333,949 |  |  | 2,188,193 |
Finished goods |  | 10,625,826 |  |  | 13,190,031 |  |  | 5,829,508 |
| $ | 16,540,252 |  | $ | 17,094,922 |  | $ | 9,832,405 |
During the year ended September 30, 2016, three months ended December 31, 2016 and year ended December 31, 2017, write-downs of obsolete inventories to lower of cost or net realizable value of $439,068, $414,919 and $5,776,891, respectively, were charged to cost of revenues.

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- Definition The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -URI http://asc.fasb.org/topic&trid=2126998 + Details
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Data Type: | nonnum:textBlockItemType
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Period Type: | duration