Accrued Liabilities

12 Months Ended

Dec. 31, 2018

Payables and Accruals [Abstract]

Accrued Liabilities

ACCRUED LIABILITIES

Accrued liabilities consisted of the following:

	December 31,
	2018		2017
	(in thousands)
Accrued employee compensation and related taxes	$	1,704	$	1,538
Accrued outsourced clinical trials and preclinical studies	1,129		581
Accrued legal fees and expenses	376		185
Accrued other professional service fees	246		232
Deferred and accrued facility lease obligations	124		74
Value of liability-classified stock purchase warrants	82		82
Accrued equipment and lab materials	33		197
Other accrued liabilities	174		102
Total accrued liabilities	$	3,868	$	2,991