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Inventory
9 Months Ended
Sep. 30, 2018
Inventory Disclosure [Abstract]  
Inventory

4. Inventory.

 

    September 30, 2018     December 31, 2017  
Completed goods   $ 2,026,525     $ 2,530,914  
Work in progress     -       183,944  
Raw materials     3,244,835       1,971,994  
    $ 5,271,360     $ 4,686,852