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Orthotec Settlement - Schedule of Reconciliation of Total Net Settlement Obligation (Details) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Commitments And Contingencies Disclosure [Abstract]    
Litigation settlement obligation - short-term portion $ 4,000 $ 4,000
Litigation settlement obligation - long-term portion 6,721 7,634
Total 10,721 11,634
Future interest 1,012 1,199
Total settlement obligation, gross 11,733 12,833
Related party receivable - included in stockholders' equity (2,900) (4,000)
Total settlement obligation, net $ 8,833 $ 8,833