Accrued Expenses

6 Months Ended

Jun. 30, 2023

Payables and Accruals [Abstract]

Accrued Expenses

7. Accrued Expenses

Accrued expenses consist of the following (in thousands):

	June 30,		December 31,
	2023		2022
Payroll and employee related expenses	$	2,978	$	4,242
Collaboration and licensing		2,523		—
Accrued patent fees		471		696
Accrued external research and development costs		5,094		7,274
Accrued professional and consulting services		1,257		985
Accrued interest		187		222
Other		392		665
Accrued expenses	$	12,902	$	14,084