Revenue Recognition (Tables)	12 Months Ended
Dec. 31, 2021
Revenue Recognition [Abstract]
Disaggregation Of Revenue	2021 2020 2019Domestic hospitals$ 150,301 $ 137,810 $ 144,538International hospitals 106,639 80,524 85,241International distributors 41,046 34,429 40,427CardioGenesis cardiac laser therapy 850 464 6,016Total sources of revenue$ 298,836 $ 253,227 $ 276,222

Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130545-203045

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