Quarterly report pursuant to Section 13 or 15(d)

3. INVENTORIES (Tables)

v3.19.2
3. INVENTORIES (Tables)
6 Months Ended
Jun. 30, 2019
Inventory Disclosure [Abstract]  
Schedule of inventory
    June 30,
2019
  December 31,
2018
         
Raw materials   $ 15,904,618     $ 14,019,668  
Work-in-process     4,668,266       —    
Finished goods     3,016,866       4,596,501  
Total inventories   $ 23,589,750     $ 18,616,169