Net Loss per Common Share (Tables)

3 Months Ended

Mar. 31, 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 March 31, 2017 and 2016, respectively:

	Three Month Period Ended
	March 31,
	2017		2016
Basic and diluted weighted average common stock shares outstanding		12,964,639		12,457,858
Potentially dilutive securities excluded from loss per share computations:
Common stock options		3,387,581		2,451,570
Common stock purchase warrants		7,603,141		7,195,997
Restricted stock unvested		282,350		150,000