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Accrued Expenses (Details) - Schedule of accrued expenses - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Schedule of accrued expenses [Abstract]    
Payroll $ 1,455 $ 1,530
Taxes 30 159
Legal fees 26 156
Research and development costs 142 37
Other expenses 267 31
Total $ 1,920 $ 1,913