Accrued Liabilities (Tables)

12 Months Ended

Dec. 31, 2019

Payables And Accruals [Abstract]

Accrued Liabilities

Accrued liabilities at December 31, 2019 and 2018, consisted of the following (in thousands):

	December 31,
	2019		2018
Accrued compensation and related costs	$	12,703	$	10,765
Accrued professional services		3,489		4,544
Accrued development costs		1,468		1,965
Other accrued expenses		3,291		2,526
Total accrued liabilities	$	20,951	$	19,800