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Inventories
9 Months Ended
Sep. 30, 2019
Inventory Disclosure [Abstract]  
Inventories

5. Inventories

 

Inventories consisted of the following:

 

    September 30, 2019     December 31, 2018  
Raw materials   $ 10,044,818     $ 10,347,616  
Finished goods     2,213,065       669,843  
Total inventories   $ 12,257,883     $ 11,017,459