Accounts payable and accrued liabilities (Tables)

3 Months Ended

Mar. 31, 2018

Payables and Accruals [Abstract]

Schedule of accounts payable and accrued liabilities

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

	March 31,		December 31,
	2018		2017
Accounts payable	$	4,731	$	4,344
Accrued clinical, development and other expenses	9,058		6,279
Accrued compensation and benefits	1,972		3,021
	$	15,761	$	13,644