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Additional Balance Sheet Information

6 Months Ended

Jun. 30, 2020

Prepaid expenses and other current assets consist of the following (in thousands):



	June 30, 2020		December 31, 2019
	(unaudited)
Prepaid research and development	$	580	$	574
Tenant improvement allowance receivable	42		586
Prepaid insurance	90		301
Prepaid other	285		89
Other receivables	21		100
Prepaid expenses and other current assets	$	1,018	$	1,650

Accrued liabilities consist of the following (in thousands):



	June 30, 2020		December 31, 2019
	(unaudited)
Research and development services	$	1,970	$	2,543
Employee compensation	1,073		1,761
Legal and professional fees	687		515
Accrued other	94		466
Accrued Liabilities	$	3,824	$	5,285