Revenue Recognition (Tables)

9 Months Ended

Sep. 30, 2019

Revenue Recognition [Abstract]

Disaggregation Of Revenue

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
		2019		2018		2019		2018
	(Unaudited)				(Unaudited)
Domestic hospitals	$	36,627	$	34,924	$	108,582	$	103,606
International hospitals		20,246		19,001		63,204		56,440
International distributors		9,654		9,083		29,773		30,482
CardioGenesis cardiac laser therapy		1,354		1,590		4,966		4,514
Total sources of revenue	$	67,881	$	64,598	$	206,525	$	195,042