Segment And Geographic Information (Narrative) (Details) $ in Thousands	3 Months Ended																	12 Months Ended
	Dec. 31, 2019 USD ($)	[1]	Sep. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Sep. 30, 2018 USD ($)	Jun. 30, 2018 USD ($)	Mar. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	[1]	Sep. 30, 2017 USD ($)	[1]	Jun. 30, 2017 USD ($)	[1]	Mar. 31, 2017 USD ($)	[1]	Dec. 31, 2019 USD ($) segment	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segment																		2
Revenues	$ 69,697		$ 67,881	$ 71,139	$ 67,505	$ 67,799	$ 64,598	$ 68,496	$ 61,948	$ 52,826		$ 43,999		$ 47,818		$ 45,059		$ 276,222	$ 262,841	$ 189,702
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Revenues																		$ 0

[1] In December 2017 we completed our acquisition of JOTEC, which is operated as a wholly-owned subsidiary of CryoLife.