Inventories And Deferred Preservation Costs

9 Months Ended

Sep. 30, 2019

Inventories And Deferred Preservation Costs [Abstract]

Inventories And Deferred Preservation Costs

5. Inventories and Deferred Preservation Costs 

Inventories at September 30, 2019 and December 31, 2018 were comprised of the following (in thousands): 

	September 30,		December 31,
	2019		2018
Raw materials and supplies	$	19,584	$	17,381
Work-in-process		5,183		3,858
Finished goods		23,636		24,239
Total inventories	$	48,403	$	45,478

Deferred preservation costs at September 30, 2019 and December 31, 2018 were comprised of the following (in thousands):

	September 30,		December 31,
	2019		2018
Cardiac tissues	$	15,512	$	15,972
Vascular tissues		16,840		17,202
Total deferred preservation costs	$	32,352	$	33,174

We maintain consignment inventory of our On-X heart valves at domestic hospital locations and On-X heart valves and JOTEC products at international hospital locations to facilitate usage. We retain title and control over this consignment inventory until the device is implanted, at which time we invoice the hospital and recognize revenue. As of September 30, 2019 we had $11.8 million in consignment inventory, with approximately 52% in domestic locations and 48% in international locations. As of December 31, 2018 we had $11.2 million in consignment inventory, with approximately 55% in domestic locations and 45% in international locations.