Net Loss per Common Share (Tables)

9 Months Ended

Sep. 30, 2017

Basic weighted average common shares outstanding, and the potentially dilutive securities excluded from loss per share computations because they are anti-dilutive, are as follows as of September 30, 2017 and 2016, respectively:

	Three Month Period Ended				Nine Month Period Ended
	September 30,				September 30,
	2017		2016		2017		2016
Basic and diluted weighted average common stock shares outstanding		13,238,248		12,699,419		13,102,238		12,575,560
Potentially dilutive securities excluded from loss per share computations:
Common stock options		3,353,434		2,567,328		3,353,434		2,567,328
Common stock purchase warrants		7,361,283		7,603,141		7,361,283		7,603,141
Restricted stock unvested		258,600		109,375		258,600		109,375