Accrued Expenses (Tables)

3 Months Ended

Mar. 31, 2016

Accrued Expenses

Schedule of accrued expenses

	March 31,		December 31,
	2016		2015
Research and development expenses	$	178	$	123
Employee-related expenses		310		—
Licensing fees		—		250
Vixen contract payable		100		—
Professional fees		281		283
Other		52		89
Total accrued expenses	$	921	$	745