Accrued Expenses (Tables)

6 Months Ended

Jun. 30, 2018

Payables and Accruals [Abstract]

Schedule of accrued expenses

Accrued expenses consisted of the following:

	June 30, 2018		December 31, 2017
Accrued employee compensation and benefits	$	1,467	$	89
Accrued clinical trial costs	4,383		3,582
Accrued professional fees	2,164		390
Accrued lease liability	353		362
Other	361		285
	$	8,728	$	4,708