2. Inventories (Tables)

3 Months Ended

Mar. 31, 2016

Inventory Disclosure [Abstract]

Inventories

	March 31,		December 31,
	2016		2015
Raw materials	$	13,230	$	12,775
Work in process		7,182		6,557
Finished goods		10,056		10,439
Total inventories	$	30,468	$	29,771