Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2016

Accounting Policies [Abstract]

Components of Inventory

The components of inventory are as follows (in thousands):

	December 31,
	2016		2015
Raw materials	$	1,404	$	1,303
Work in process		466		530
Finished goods		866		2,498
	$	2,736	$	4,331