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INVENTORIES, NET
3 Months Ended
Mar. 31, 2019
Inventory Disclosure [Abstract]  
INVENTORIES, NET

Inventory is recorded at the lower of cost or net realizable value. The cost of substantially all of the Company’s inventory is determined by the weighted average cost method. Inventories consisted of the following:

 

    March 31,     December 31,  
    2019     2018  
Finished goods   $ 46,510     $ 82,313  
Work in process     2,101       12,695  
Raw materials     644,080       63,259  
    $ 692,691     $ 158,267