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Inventories
3 Months Ended
Mar. 31, 2019
Inventory Disclosure [Abstract]  
Inventories
Inventories
Inventories consist of the following:


March 31,
2019

December 31,
2018
Finished products

$
3,741


$
3,876

Feedstock, additives and chemicals

430


512

Inventories

$
4,171


$
4,388