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Accrued Liabilities
9 Months Ended
Sep. 30, 2023
Payables and Accruals [Abstract]  
Accrued Liabilities Accrued Liabilities
Accrued liabilities consisted of the following (in thousands):
September 30,December 31,
20232022
Research and development expenses$5,853 $4,846 
Compensation and benefits1,221 665 
Professional fees and other896 649 
Total$7,970 $6,160