Inventories (Tables)

9 Months Ended

Sep. 30, 2018

Inventory Disclosure [Abstract]

Schedule of Inventory

The components of inventories are as follows:

	September 30,		December 31,
	2018		2017
	(In thousands)
	(unaudited)
Finished goods	$	4,212	$	4,432
Raw materials		6,030		6,385
Total inventories	$	10,242	$	10,817