Inventory (Tables)

6 Months Ended

Jun. 30, 2017

Inventory Disclosure [Abstract]

Components of Inventory

Inventory is valued at the lower of cost or market, with cost determined using the first-in, first-out method, and is comprised of the following (in thousands):  

	June 30,		December 31,
	2017		2016
Raw materials	$	5,072	$	4,837
Work-in-process		2,134		2,261
Finished goods		7,986		6,425
Inventory, net	$	15,192	$	13,523