XML 23 R13.htm IDEA: XBRL DOCUMENT v3.19.1
Inventories
3 Months Ended
Mar. 31, 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 method. The components of inventories consist of the following:

 

 

 

March 31,

2019

 

 

December 31,

2018

 

Finished products

 

$

174,224

 

 

$

147,297

 

Raw materials

 

 

15,275

 

 

 

12,598

 

Inventories

 

$

189,499

 

 

$

159,895

 

 

As of March 31, 2019, we believe our inventories are valued at lower of cost or net realizable value.