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Fair Value of Financial Assets and Liabilities - Schedule of Contingent Common Stock Liability Measured at Fair Value (Details)
$ in Thousands
6 Months Ended
Jun. 30, 2021
USD ($)
Fair Value Disclosures [Abstract]  
Fair value, Beginning balance $ 373
Change in fair value 735
Share issuance in partial settlement of contingent stock (831)
Cash payment in partial settlement of contingent stock (277)
Fair value, Ending balance $ 0