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Inventory (Tables)
12 Months Ended
Dec. 31, 2017
Inventory Disclosure [Abstract]  
Inventory
Inventory consisted of the following:
 
As of
 
December 31, 2017
 
December 31, 2016
Work in-process
$
2,025,445

 
$
18,916,084

Finished goods
957,804

 
7,293,880

Inventory
$
2,983,249

 
$
26,209,964