Accrued Expenses (Tables)

12 Months Ended

Dec. 31, 2016

Payables and Accruals [Abstract]

Components of accrued expenses

Accrued expenses consisted of the following (in thousands):

	December 31,
	2016		2015
Development costs	$	852	$	931
Employee compensation	352		573
Professional fees	413		194
Interest	—		88
Other	157		8
	$	1,774	$	1,794