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Accrued and Other Liabilities - Schedule of accrued and other current liabilities (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Accrued and Other Current Liabilities [Abstract]    
Accrued research and development $ 2,844 $ 2,310
Accrued legal and professional fees 392 233
Other current liabilities   634
Other current liabilities 118  
Accrued and other current liabilities $ 3,354 $ 3,177