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Segment And Geographic Information (Narrative) (Details)
$ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2018
USD ($)
 [1]
Sep. 30, 2018
USD ($)
Jun. 30, 2018
USD ($)
Mar. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
 [2]
Sep. 30, 2017
USD ($)
 [2]
Jun. 30, 2017
USD ($)
 [2]
Mar. 31, 2017
USD ($)
 [2]
Dec. 31, 2016
USD ($)
Sep. 30, 2016
USD ($)
Jun. 30, 2016
USD ($)
Mar. 31, 2016
USD ($)
Dec. 31, 2018
USD ($)
segment
Dec. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
Segment Reporting Information [Line Items]                              
Number of reportable segments | segment                         2    
Revenues $ 67,799 $ 64,598 $ 68,496 $ 61,948 $ 52,826 $ 43,999 $ 47,818 $ 45,059 $ 45,029 $ 45,252 $ 47,083 $ 43,016 $ 262,841 $ 189,702 $ 180,380
Intersegment Eliminations [Member]                              
Segment Reporting Information [Line Items]                              
Revenues                         $ 0    
[1] In December 2017 we completed our acquisition of JOTEC, which is also being operated as a wholly-owned subsidiary of CryoLife.
[2] In January 2016 we completed our acquisition of On-X Life Technologies Holdings, Inc., which is being operated as a wholly-owned subsidiary of CryoLife. In 2016 we also sold our HeRO Graft product line and our ProCol product line, and ceased sales of these products during 2016.