Quarterly report pursuant to Section 13 or 15(d)

3. INVENTORIES (Tables)

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3. INVENTORIES (Tables)
9 Months Ended
Sep. 30, 2019
Inventory Disclosure [Abstract]  
Schedule of inventory
    September 30,
2019
  December 31,
2018
         
Raw materials   $ 23,471,487     $ 14,019,668  
Work-in-process     13,955,875       —    
Finished goods     2,857,977       4,596,501  
Total inventories   $ 40,285,339     $ 18,616,169