Inventories (Tables)

9 Months Ended

Sep. 30, 2018

Inventory Disclosure [Abstract]

Summary of determination cost of inventories

Inventories consisted of the following:

	September 30,		December 31,
	2018		2017
Finished and in-process products	$	28,772	$	31,307
Raw materials and supplies		15,538		15,859
	$	44,310	$	47,166