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Inventory (Tables)
6 Months Ended
Jun. 30, 2021
Inventory Disclosure [Abstract]  
Schedule of inventories
Inventory is comprised of unprocessed tissue, work-in-process, Avance® Nerve Graft, Axoguard® Nerve Connector, Axoguard® Nerve Protector, Axoguard® Nerve Cap, Acroval® Neurosensory and Motor Testing System, Axotouch® Two-Point Discriminator and supplies and is valued at the lower of cost (first-in, first-out) or net realizable value and consist of the following:
June 30,
2021
December 31,
2020
Finished goods$9,288 $8,876 
Work in process482 751 
Raw materials3,645 2,902 
Inventory$13,415 $12,529