Accrued Liabilities (Tables)

12 Months Ended

Dec. 31, 2019

Accrued Liabilities Current [Abstract]

Schedule of Accrued Liabilities

Accrued liabilities consisted of the following (in thousands):

	December 31,
	2019		2018
Research and clinical expenses	$	19,006	$	18,520
Payroll and related expenses		6,721		6,585
Legal and professional expenses		1,062		830
Operating lease liabilities - short term		2,810		—
Other accrued expenses		452		789
Total	$	30,051	$	26,724