Accrued Expenses (Tables)

12 Months Ended

Dec. 31, 2017

Accrued Expenses

Schedule of accrued expenses

	December 31,
	2017		2016
Clinical trials	$	2,116	$	2,545
Professional fees		390		88
Payroll and related expenses		955		25
Accrued expenses	$	3,461	$	2,658