Inventories And Deferred Preservation Costs (Tables)

12 Months Ended

Dec. 31, 2019

Inventories And Deferred Preservation Costs [Abstract]

Schedule Of Inventories

	2019		2018
Raw materials and supplies	$	21,180	$	17,381
Work-in-process		5,127		3,858
Finished goods		26,764		24,239
Total inventories	$	53,071	$	45,478

Schedule Of Deferred Preservation Costs

	2019		2018
Cardiac tissues	$	15,365	$	15,972
Vascular tissues		17,186		17,202
Total deferred preservation costs	$	32,551	$	33,174