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5. INVENTORIES
12 Months Ended
Dec. 31, 2020
Inventory Disclosure [Abstract]  
INVENTORIES

Inventories consist of the following at December 31:

 

    2020     2019  
Materials   $ 1,238,332     $ 911,054  
Work in process     84,203       10,284  
Finished goods     15,182,305       6,519,012  
Total   $ 16,504,840     $ 7,440,350  

 

Finished goods includes consigned inventory held by our customers of $2,293,017 and $1,841,400 at December 31, 2020 and 2019, respectively and includes in-transit inventory of $6,243,165 and $1,930,358 at December 31, 2020 and 2019, respectively. The Company reviews inventory for obsolete and slow-moving products each quarter and makes provisions based on its estimate of the probability that the material will not be consumed or that it will be sold below cost. The provision for inventory reserves was negligible for both years ended December 31, 2020 and year ended December 31, 2019.