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Inventories (Tables)
12 Months Ended
Dec. 31, 2018
Inventories [Abstract]  
Schedule of inventories
  2018  2017 
Raw materials $4,320,131  $3,994,624 
Finished goods  8,049,791   5,354,097 
Inventories, gross  12,369,922   9,348,721 
Inventory reserves  (284,109)  (274,295)
Inventories, net $12,085,813  $9,074,426