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Segment Information (Summary Of Net Revenues By Product And Service) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2017 | [1] | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2016 | [2] | Sep. 30, 2016 | [2] | Jun. 30, 2016 | [2] | Mar. 31, 2016 | [2] | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Product Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenues | $ 52,826 | $ 43,999 | $ 47,818 | $ 45,059 | $ 45,029 | $ 45,252 | $ 47,083 | $ 43,016 | $ 39,838 | $ 36,703 | $ 35,526 | $ 33,831 | $ 189,702 | $ 180,380 | $ 145,898
BioGlue And BioFoam [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  |  |  |  |  | 65,939 | 63,461 | 59,332
On-X [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  |  |  |  |  | 37,041 | 34,232 |
JOTEC [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  |  |  |  |  | 4,136 |  |
CardioGenesis Cardiac Laser Therapy [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  |  |  |  |  | 6,866 | 7,864 | 9,419
PerClot [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  |  |  |  |  | 3,533 | 4,021 | 4,083
PhotoFix [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  |  |  |  |  | 2,116 | 1,871 | 1,396
HeRO Graft [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,325 | 7,546
ProCol [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  |  |  |  |  |  | 218 | 1,305
Cardiac Tissues [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  |  |  |  |  | 32,510 | 29,697 | 28,059
Vascular Tissues [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  |  |  |  |  | 37,561 | 36,691 | 34,758
Operating Segments [Member] | Medical Devices [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  |  |  |  |  | 119,631 | 113,992 | 83,081
Operating Segments [Member] | Preservation Services [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Product Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  |  |  |  |  | $ 70,071 | $ 66,388 | $ 62,817
[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.

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