Quarterly report pursuant to Section 13 or 15(d)

Accrued and Other Current Liabilities - Schedule of Accrued and Other Current Liabilities (Details)

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Accrued and Other Current Liabilities - Schedule of Accrued and Other Current Liabilities (Details) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Payables And Accruals [Abstract]    
Research and development services $ 1,765 $ 1,294
General and administrative services 200 160
Compensation expense 651 2,445
Other 83 38
Accrued and other current liabilities $ 2,699 $ 3,937