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INVENTORIES (Tables)
12 Months Ended
Dec. 31, 2016
INVENTORIES [Abstract]  
Schedule of Inventories
 
 
December 31,
 
 
 
2015
 
2016
 
Raw materials
 
$
2,343,104
 
$
2,947,296
 
Work-in-process
 
 
5,626,531
 
 
4,878,905
 
Finished goods
 
 
2,746,304
 
 
4,454,499
 
Total
 
$
10,715,939
 
$
12,280,700