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Accrued Expenses and Other Liabilities
9 Months Ended
Sep. 30, 2022
Other Liabilities Disclosure [Abstract]  
Accrued Expenses and Other Liabilities Accrued Expenses and Other Liabilities
Accrued expenses and other liabilities consisted of the following (in thousands):
September 30,
December 31,
20222021
Accrued research and development expense$1,366 $3,043 
Accrued professional expenses1,463 1,386 
Accrued compensation and benefit costs3,810 5,018 
Payroll tax payable433 593 
Other liabilities745 268 
$7,817 $10,308