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Segment and Geographic Information (Tables)

12 Months Ended

Dec. 31, 2017

Segment and Geographic Information [Abstract]

Revenue by Geographic Area



		2017			2016			2015
United States		$	138,387		$	122,385		$	102,212
Europe			21,901			19,772			17,180
Asia			13,616			12,223			9,510
Other international			812			729			853
Total international			36,329			32,724			27,543
Total revenue		$	174,716		$	155,109		$	129,755



Revenue by Product Type

United States revenue by product type was as follows:







		2017			2016			2015
Open-heart ablation		$	64,517		$	58,050		$	53,541
Minimally invasive ablation			34,421			31,169			21,564
AtriClip devices			37,281			30,321			24,377
Total ablation and AtriClip devices			136,219			119,540			99,482
Valve tools			2,168			2,845			2,730
Total United States		$	138,387		$	122,385		$	102,212



International revenue by product type was as follows:







		2017			2016			2015
Open-heart ablation		$	20,718		$	20,189		$	16,287
Minimally invasive ablation			8,007			8,065			7,964
AtriClip devices			7,251			3,986			2,868
Total ablation and AtriClip devices			35,976			32,240			27,119
Valve tools			353			484			424
Total international		$	36,329		$	32,724		$	27,543



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- Definition

Tabular disclosure of revenue from external customers by geographic areas attributed to the entity's country of domicile and to foreign countries from which the entity derives revenue.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
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- Definition

Tabular disclosure of entity-wide revenues from external customers for each product or service or each group of similar products or services if the information is not provided as part of the reportable operating segment information.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
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