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Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2019

Accounting Policies [Abstract]

Summary of Product Revenue by Geographical Locations of Customers

Product revenue by geographical locations of customers during the three and nine months ended September 30, 2019 and 2018, were as follows (in thousands):

		Three Months Ended								Nine Months Ended
		September 30,								September 30,
		2019				2018				2019				2018
Product revenue:
Europe, Middle East and Africa		$	12,806			$	11,866			$	38,207			$	34,890
North America			4,792				3,117				14,501				8,653
Other			421				416				1,024				840
Total product revenue		$	18,019			$	15,399			$	53,732			$	44,383

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 and nine months ended September 30, 2019 and 2018 (shares in thousands):

		Three Months Ended								Nine Months Ended
		September 30,								September 30,
		2019				2018				2019				2018
Weighted average number of anti-dilutive potential shares:
Stock options			17,340				17,882				17,559				18,137
Restricted stock units			4,148				1,989				3,107				1,865
Employee stock purchase plan rights			4				3				2				2
Total			21,492				19,874				20,668				20,004

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- References

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- Definition

Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045

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Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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