Inventories And Deferred Preservation Costs

6 Months Ended

Jun. 30, 2018

Inventories And Deferred Preservation Costs [Abstract]

Inventories And Deferred Preservation Costs

5.  Inventories and Deferred Preservation Costs

Inventories at June 30, 2018 and December 31, 2017 were comprised of the following (in thousands): 

	June 30,		December 31,
	2018		2017
Raw materials and supplies	$	16,054	$	16,328
Work-in-process		4,447		5,504
Finished goods		25,285		24,852
Total inventories	$	45,786	$	46,684

Deferred preservation costs at June 30, 2018 and December 31, 2017 were comprised of the following (in thousands):

	June 30,		December 31,
	2018		2017
Cardiac tissues	$	16,487	$	16,988
Vascular tissues		18,046		18,683
Total deferred preservation costs	$	34,533	$	35,671

To facilitate patient support and access, we maintain consignment inventory of our On-X Life Technologies Holdings, Inc. (“On-X”) heart valves at domestic and international hospital locations and JOTEC products at international hospital locations.  We retain title to this consignment inventory and it is included in finished goods inventory until the device is implanted, at which time we invoice the hospital.  As of June 30, 2018 we had $10.7 million in consignment inventory, with approximately 56% in domestic locations and 44% 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.