Prepaid Expenses and Other Current Assets

9 Months Ended

Sep. 30, 2021

Prepaid Expense And Other Assets [Abstract]

Prepaid Expenses and Other Current Assets

5.Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets consisted of the following:

	September 30,		December 31,
	2021		2020
	(in thousands)
Prepaid research and development expenses	$	1,600	$	4,460
Prepaid insurance		1,295		571
Payroll tax receivable		219		32
Other prepaid expenses and other assets		115		251
	$	3,229	$	5,314