Accrued Expenses (Tables)

12 Months Ended

Dec. 31, 2018

Accrued Expenses

Schedule of accrued expenses

	December 31,
	2018		2017
Clinical trials	$	1,745	$	2,116
Professional fees		219		390
Payroll and related expenses		908		955
Accrued expenses	$	2,872	$	3,461