Revenue Recognition (Tables)

6 Months Ended

Jun. 30, 2020

Revenue Recognition [Abstract]

Disaggregation Of Revenue

	Three Months Ended				Six Months Ended
	June 30,				June 30,
		2020		2019		2020		2019
	(Unaudited)				(Unaudited)
Domestic hospitals	$	30,228	$	36,344	$	66,564	$	71,955
International hospitals		16,135		22,532		35,872		43,102
International distributors		7,244		10,365		17,489		19,975
CardioGenesis cardiac laser therapy		164		1,898		275		3,612
Total sources of revenue	$	53,771	$	71,139	$	120,200	$	138,644