Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2020

Accounting Policies [Abstract]

Summary of Product Revenue by Geographical Locations of Customers

Product revenue by geographical locations of customers during the three months ended March 31, 2020 and 2019, were as follows (in thousands):

	Three Months Ended
	March 31,
	2020		2019
Product revenue:
Europe, Middle East and Africa	$	12,220	$	12,653
North America		6,077		4,551
Other		314		300
Total product revenue	$	18,611	$	17,504

Anti-Dilutive Effect of Common Shares

The table below presents potential shares that were excluded from the calculation of the weighted average number of shares outstanding used for the calculation of diluted net loss per share. These are excluded from the calculation due to their anti-dilutive effect for the three months ended March 31, 2020 and 2019 (shares in thousands):

	Three Months Ended
	March 31,
	2020		2019
Weighted average number of anti-dilutive potential shares:
Stock options		17,361		17,648
Restricted stock units		4,743		2,247
Employee stock purchase plan rights		41		7
Total		22,145		19,902