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Accrued Expenses (Tables)
12 Months Ended
Dec. 31, 2021
Payables and Accruals [Abstract]  
Schedule of accrued expenses
   December 31, 
   2021   2020 
Payroll  $1,801   $1,530 
Taxes   41    159 
Legal fees   29    156 
Research and development costs   437    37 
Other expenses   181    31 
Total  $2,489   $1,913