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Accrued Expenses
3 Months Ended 12 Months Ended
Mar. 31, 2023
Dec. 31, 2022
Payables and Accruals [Abstract]    
Accrued Expenses
6. Accrued expenses
Accrued expenses consist of the following:
 
    
March 31,
2023
    
December 31,
2022
 
Payroll and employee related expenses
   $ 3,831      $ 4,216  
Professional fees
     550        377  
Third-party research and development expenses
     457        773  
Other
     729        525  
  
 
 
    
 
 
 
Total
   $ 5,567      $ 5,891  
  
 
 
    
 
 
 
6. Accrued expenses
Accrued expenses consist of the following:
 
    
December 31,
2022
    
December 31,
2021
 
Payroll and employee related expenses
   $ 4,216      $ 4,375  
Professional fees
     377        767  
Third-party research and development expenses
     773        840  
Other
     525        119  
  
 
 
    
 
 
 
Total
   $ 5,891      $ 6,101