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Inventory (Tables)
 12 Months Ended
Dec. 31, 2019
Inventory  
Schedule of inventory

 

 

 

 

 

 

 

 

 

 

As of December 31, 

 

    

2019

    

2018

Raw materials

 

$

2,939,451

 

$

3,408,158

Work in process

 

 

229,479

 

 

305,562

Finished goods

 

 

697,483

 

 

557,566

Inventory before allowance for excess and obsolete

 

 

3,866,413

 

 

4,271,286

Allowance for excess and obsolete

 

 

(224,852)

 

 

(211,843)

Total

 

$

3,641,561

 

$

4,059,443