Segment And Geographic Information (Summary Of Net Revenues By Product And Service) (Details) - USD ($) $ in Thousands	3 Months Ended																12 Months Ended
	Dec. 31, 2016	[1]	Sep. 30, 2016	[1]	Jun. 30, 2016	[1]	Mar. 31, 2016	[1]	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Product Information [Line Items]
Total revenues	$ 45,029		$ 45,252		$ 47,083		$ 43,016		$ 39,838	$ 36,703	$ 35,526	$ 33,831	$ 37,151	$ 37,069	$ 34,690	$ 35,731	$ 180,380	$ 145,898	$ 144,641
BioGlue And BioFoam [Member]
Product Information [Line Items]
Total revenues																	63,461	59,332	62,091
On-X [Member]
Product Information [Line Items]
Total revenues																	34,232
CardioGenesis Cardiac Laser Therapy [Member]
Product Information [Line Items]
Total revenues																	7,864	9,419	8,225
PerClot [Member]
Product Information [Line Items]
Total revenues																	4,021	4,083	4,289
PhotoFix [Member]
Product Information [Line Items]
Total revenues																	1,871	1,396
HeRO Graft [Member]
Product Information [Line Items]
Total revenues																	2,325	7,546	7,131
ProCol [Member]
Product Information [Line Items]
Total revenues																	218	1,305	147
Cardiac Tissues [Member]
Product Information [Line Items]
Total revenues																	29,697	28,059	29,437
Vascular Tissues [Member]
Product Information [Line Items]
Total revenues																	36,691	34,758	33,321
Operating Segments [Member] | Medical Devices [Member]
Product Information [Line Items]
Total revenues																	113,992	83,081	81,883
Operating Segments [Member] | Preservation Services [Member]
Product Information [Line Items]
Total revenues																	$ 66,388	$ 62,817	$ 62,758

[1] In January 2016 the Company completed its acquisition of On-X Life Technologies Holdings, Inc., which is being operated as a wholly owned subsidiary of CryoLife. In 2016 the Company also sold its HeRO Graft product line and its ProCol product line, and ceased sales of these products during 2016.