Revenue Recognition (Tables)

9 Months Ended

Sep. 30, 2020

Revenue Recognition [Abstract]

Disaggregation Of Revenue

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
		2020		2019		2020		2019
	(Unaudited)				(Unaudited)
Domestic hospitals	$	36,249	$	36,627	$	102,813	$	108,582
International hospitals		20,764		20,246		56,638		63,204
International distributors		8,035		9,654		25,522		29,773
CardioGenesis cardiac laser therapy		83		1,354		358		4,966
Total sources of revenue	$	65,131	$	67,881	$	185,331	$	206,525