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Accrued Expenses
 12 Months Ended
Dec. 31, 2022
Payables and Accruals [Abstract]  
Accrued Expenses Accrued Expenses
Accrued expenses recorded in our consolidated balance sheet consist of the following (in thousands):
December 31, 2022December 31, 2021
Employee bonus, compensation and benefits$1,191 $6,412 
External research and development expenses5,389 4,895 
Professional and consulting fees883 1,013 
Other482 748 
Total accrued expenses$7,945 $13,068