Inventories And Deferred Preservation Costs

3 Months Ended

Mar. 31, 2018

Inventories And Deferred Preservation Costs [Abstract]

Inventories And Deferred Preservation Costs

5.  Inventories and Deferred Preservation Costs

Inventories at March 31, 2018 and December 31, 2017 were comprised of the following (in thousands): 

	March 31,		December 31,
	2018		2017
Raw materials and supplies	$	15,990	$	16,328
Work-in-process		5,934		5,504
Finished goods		22,662		24,852
Total inventories	$	44,586	$	46,684

Deferred preservation costs at March 31, 2018 and December 31, 2017 were comprised of the following (in thousands):

	March 31,		December 31,
	2018		2017
Cardiac tissues	$	16,875	$	16,988
Vascular tissues		18,121		18,683
Total deferred preservation costs	$	34,996	$	35,671

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 deviceis implanted, at which time we invoice the hospital.  As of March 31, 2018 we had $9.6 million in consignment inventory, with approximately 61% in domestic locations and 39% in foreign locations.  As of December 31, 2017 we had $9.3 million in consignment inventory with approximately 58% in domestic locations and 42% in foreign locations.