Post-effective amendment to a registration statement that is not immediately effective upon filing

Accrued Expenses and Other Current Liabilities (Details) - Schedule of accrued expenses and other current liabilities

v3.22.1
Accrued Expenses and Other Current Liabilities (Details) - Schedule of accrued expenses and other current liabilities - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Schedule of accrued expenses and other current liabilities [Abstract]      
Payroll and other employee benefits $ 523 $ 862 $ 155
Professional fees 1,816 1,379 108
Research and development costs 2,023 1,895
Operating lease liabilities, current portion 1,287 2,240 209
Other accrued expenses 617 598 53
Total accrued expenses and other current liabilities $ 6,266 $ 6,974 $ 525