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Schedule of Accrued and Other Current Liabilities (Details) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Accrued Liabilities, Current [Abstract]    
Accrued payroll and other employee benefits $ 863 $ 2,854
Accrued research and development 986 1,028
Accrued legal and professional fees 79 94
Accrued other general and administrative fees 330 440
Total accrued and other current liabilities $ 2,258 $ 4,416