Accrued Expenses

12 Months Ended

Dec. 31, 2022

Accrued Liabilities, Current [Abstract]

Accrued Expenses

7. Accrued Expenses

Accrued expenses as of December 31, 2022 and 2021 is summarized as follows:

	December 31,
	2022		2021
Employee and board compensation	$	2,273,250	$	2,006,465
Contract manufacturing services		—		1,273,978
Professional services		242,617		352,114
Contract research services		1,038,344		987,406
	$	3,554,211	$	4,619,963