Accrued Expenses (Tables)

9 Months Ended

Sep. 30, 2022

Payables and Accruals [Abstract]

Schedule of Accrued Liabilities [Table Text Block]

Accrued expenses and other current liabilities consisted of the following:

	September 30,		December 31,
(in thousands)	2022		2021
Accrued employee compensation and benefits	$	6,405	$	7,579
Accrued external research and development expenses		1,000		2,091
Accrued professional fees		1,174		962
Property and equipment		46		869
Other		370		676
Total	$	8,995	$	12,177