ACCOUNTS PAYABLE AND ACCRUED LIABILITIES

12 Months Ended

Dec. 31, 2018

Payables and Accruals [Abstract]

ACCOUNTS PAYABLE AND ACCRUED LIABILITIES

Accounts Payable and Accrued Liabilities

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

	December 31,
	2018		2017
Accounts payable	$	8,531	$	4,344
Accrued clinical expense	10,154		5,412
Accrued development and other expense	1,243		867
Accrued compensation and benefits	5,847		3,021
	$	25,775	$	13,644

The long-term liabilities balance of $0.7 million as of December 31, 2018 consisted of $0.1 million in deferred revenue and $0.6 million in other liabilities. The long-term liabilities of $0.3 million as of December 31, 2017 consisted of $0.3 million in other liabilities.