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Inventories (Tables)
3 Months Ended
Mar. 31, 2021
Inventory Disclosure [Abstract]  
Schedule of inventories
  

March 31,

2021

  

December 31,

2020

 
Raw materials  $6,209,489   $5,393,961 
Finished goods   8,325,443    8,072,176 
Inventories, gross   14,534,932    13,466,137 
           
Inventory reserves   (300,137)   (290,381)
           
Inventories, net  $14,234,795   $13,175,756