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Inventories And Deferred Preservation Costs | 12 Months Ended
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Dec. 31, 2020
Inventories And Deferred Preservation Costs [Abstract] |
Inventories And Deferred Preservation Costs | 6. Inventories and Deferred Preservation Costs Inventories at December 31, 2020 and 2019 are comprised of the following (in thousands):
| 2020 |  | 2019
Raw materials and supplies | $ | 33,625 |  | $ | 21,180
Work-in-process |  | 6,318 |  |  | 5,127
Finished goods |  | 33,095 |  |  | 26,764
Total inventories | $ | 73,038 |  | $ | 53,071
Deferred preservation costs at December 31, 2020 and 2019 are comprised of the following (in thousands):
| 2020 |  | 2019
Cardiac tissues | $ | 17,374 |  | $ | 15,365
Vascular tissues |  | 19,172 |  |  | 17,186
Total deferred preservation costs | $ | 36,546 |  | $ | 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 December 31, 2020 we had $11.9 million in consignment inventory, with approximately 47% in domestic locations and 53% in foreign locations. As of December 31, 2019 we had $12.0 million in consignment inventory, with approximately 51% in domestic locations and 49% in foreign locations.

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- Definition The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -URI http://asc.fasb.org/topic&trid=2126998 + Details
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