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Accrued Expenses
3 Months Ended
Mar. 31, 2022
Payables and Accruals [Abstract]  
Accrued Expenses ACCRUED EXPENSESAccrued expenses consisted of the following:
(in thousands)March 31,
2022
December 31,
2021
Accrued employee compensation and benefits$3,784 5,417 
Accrued external research and development expenses2,013 1,507 
Accrued professional fees762 632 
Other318 314 
$6,877 $7,870