Revenue Recognition (Tables)

6 Months Ended

Jun. 30, 2019

Revenue Recognition [Abstract]

Disaggregation Of Revenue

	Three Months Ended				Six Months Ended
	June 30,				June 30,
		2019		2018		2019		2018
	(Unaudited)				(Unaudited)
Domestic hospitals	$	36,344	$	35,139	$	71,955	$	68,682
International hospitals		22,532		21,902		43,102		40,951
International distributors		10,365		9,877		19,975		17,887
CardioGenesis cardiac laser therapy		1,898		1,578		3,612		2,924
Total sources of revenue	$	71,139	$	68,496	$	138,644	$	130,444