Accrued expenses consist of the following (in thousands):
September 30, 2017
December 31, 2016
External research and preclinical development
$
3,972
3,290
Employee compensation and benefits
2,116
1,911
Professional fees
850
819
Facilities
20
90
Restricted stock liability
—
5
6,958
6,115
No definition available.
Tabular disclosure of the components of accrued liabilities.