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Inventories And Deferred Preservation Costs
 6 Months Ended
Jun. 30, 2020
Inventories And Deferred Preservation Costs [Abstract]  
Inventories And Deferred Preservation Costs 5. Inventories and Deferred Preservation Costs 

 

Inventories at June 30, 2020 and December 31, 2019 were comprised of the following (in thousands): 

June 30,

December 31,

2020

2019

Raw materials and supplies

$

25,828

$

21,180

Work-in-process

6,927

5,127

Finished goods

29,953

26,764

Total inventories

$

62,708

$

53,071

Deferred preservation costs at June 30, 2020 and December 31, 2019 were comprised of the following (in thousands):

June 30,

December 31,

2020

2019

Cardiac tissues

$

16,393

$

15,365

Vascular tissues

18,415

17,186

Total deferred preservation costs

$

34,808

$

32,551

To facilitate product usage, we maintain consignment inventory of our On-X heart valves at domestic hospital locations and both On-X heart valves and JOTEC products at international hospital locations. 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 June 30, 2020 we had $12.5 million in consignment inventory, with approximately 49% in domestic locations and 51% in international locations. As of December 31, 2019 we had $12.0 million in consignment inventory, with approximately 51% in domestic locations and 49% in international locations.