Accounts payable, accrued liabilities and long-term liabilities

6 Months Ended

Jun. 30, 2019

Payables and Accruals [Abstract]

Accounts payable, accrued liabilities and long-term liabilities

Accounts payable, accrued liabilities and long-term liabilities

Accounts payable and accrued liabilities consisted of the following (in thousands):

	June 30,		December 31,
	2019		2018
Accounts payable	$	10,507	$	8,531
Accrued clinical expense	11,945		10,154
Accrued development and other expense	1,814		1,243
Accrued compensation and benefits	3,419		5,847
	$	27,685	$	25,775

The long-term liabilities balance of $0.8 million as of June 30, 2019 consisted primarily of other liabilities. As of December 31, 2018, the long-term liabilities balance of $0.7 million consisted of $0.1 million in deferred revenue and $0.6 million in other liabilities.