Inventories (Tables)

9 Months Ended

Sep. 30, 2019

Inventory Disclosure [Abstract]

Schedule of major classes of inventories

Our major classes of inventories were as follows as of September 30, 2019 and December 31, 2018 (in thousands):

	September 30, 2019		December 31, 2018
Raw materials	$	8,814	$	9,388
Work in process	5,784		5,932
Finished goods	14,046		11,371
Total inventories	$	28,644	$	26,691