Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2017

Summary of Significant Accounting Policies

Schedule of stock-based compensation expense

During the three and nine months ended September 30, 2017 and 2016, the Company recorded stock-based compensation expense for employee and non-employee stock options, which was allocated as follows in the condensed consolidated statements of operations (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2017		2016		2017		2016
Research and development	$	198	$	182	$	595	$	533
General and administrative	317		328		906		1,042
Total	$	515	$	510	$	1,501	$	1,575

Schedule of anti-dilutive common stock equivalents excluded from calculation of diluted net loss per share

	Three Months Ended September 30,		Nine Months Ended September 30,
	2017	2016	2017	2016
Stock options	2,839,407	2,486,409	2,839,407	2,486,409
Common stock warrants	24,566	24,566	24,566	24,566
	2,863,973	2,510,975	2,863,973	2,510,975