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Inventories (Tables)
 12 Months Ended
Dec. 31, 2019
Inventory Disclosure [Abstract]  
Inventories

 

 

December 31,

 

 

 

2019

 

 

2018

 

Finished goods

 

$

32,899,114

 

 

$

33,427,983

 

Work in process

 

 

274,158

 

 

 

141,646

 

Materials and supplies

 

 

6,087,833

 

 

 

7,762,508

 

Inventories:

 

$

39,261,105

 

 

$

41,332,137