Inventories And Deferred Preservation Costs

3 Months Ended

Mar. 31, 2019

Inventories And Deferred Preservation Costs [Abstract]

Inventories And Deferred Preservation Costs

4. Inventories and Deferred Preservation Costs

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


	March 31,		December 31,
	2019		2018
Raw materials and supplies	$	16,762	$	17,381
Work-in-process		4,487		3,858
Finished goods		22,875		24,239
Total inventories	$	44,124	$	45,478

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


	March 31,		December 31,
	2019		2018
Cardiac tissues	$	16,223	$	15,972
Vascular tissues		16,412		17,202
Total deferred preservation costs	$	32,635	$	33,174

We maintain consignment inventory of our On-X Life Technologies Holdings, Inc. (“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 to this consignment inventory until the device is implanted, at which time we invoice the hospital and recognize revenue. As of March 31, 2019 we had $11.3 million in consignment inventory, with approximately 54% in domestic locations and 46% in foreign locations. As of December 31, 2018 we had $11.2 million in consignment inventory, with approximately 55% in domestic locations and 45% in foreign locations.