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Inventories
9 Months Ended
Sep. 30, 2019
Inventory Disclosure [Abstract]  
Inventories

5. Inventories are stated at the lower of cost or net realizable value. Cost is determined using the first-in, first-out or average cost method. The components of inventories consist of the following:

 

 

 

September 30,

2019

 

 

December 31,

2018

 

Finished products

 

$

173,167

 

 

$

147,297

 

Raw materials

 

 

13,118

 

 

 

12,598

 

 

 

$

186,285

 

 

$

159,895