Summary of Significant Accounting Policies and Basis of Presentation (Tables)

12 Months Ended

Dec. 31, 2016

Accounting Policies [Abstract]

Summary of Inventory

At December 31, 2016 and 2015, inventory consisted of the following (in thousands):

	December 31,
	2016		2015
Raw materials	$	8,293	$	6,604
Work-in-process		2,145		1,388
	$	10,438	$	7,992

Summary of Estimated Useful Lives

Maintenance and repairs are expensed as incurred. The following estimated useful lives are used to depreciate the Company’s assets:

	Estimated Useful Life
Computer equipment and software	3 years
Lab equipment	3 years
Furniture and fixtures	5 years
Leasehold improvements	Shorter of the useful life or remaining lease term