Accrued Expenses (Tables)

3 Months Ended

Mar. 31, 2020

Accrued Expenses

Schedule of accrued expenses

At March 31, 2020 and December 31, 2019 accrued expenses consist of the following (in thousands):

	March 31,		December 31,
	2020		2019
Payroll and related expenses	$	1,891	$	3,159
Research and development activities		3,005		2,465
Other expenses		719		1,015
	$	5,615	$	6,639