2. Inventories

6 Months Ended

Jun. 30, 2017

Inventory Disclosure [Abstract]

Inventories

Inventories are stated at the lower of cost or market. Cost is determined by using the first-in, first-out method. The following table details the major components of inventories (in thousands):

	June 30,		December 31,
	2017		2016
Raw materials	$	12,991	$	12,984
Work in process		6,927		6,230
Finished goods		10,047		9,801
Total inventories	$	29,965	$	29,015