Accrued Expenses (Tables)

12 Months Ended

Dec. 31, 2022

Payables and Accruals [Abstract]

Accrued expenses

Accrued expenses consisted of the following (in thousands):

	December 31,
	2022		2021
Research and development	$	1,544	$	1,849
Payroll, bonus and other employee-related expenses		750		1,615
Professional services		225		489
Interest on debt		146		102
Other		134		141
Total	$	2,799	$	4,196