Net Loss Per Common Share (Tables)

3 Months Ended

Mar. 31, 2014

Earnings Per Share [Abstract]

Schedule of Common Stock Equivalents of Convertible Preferred Stock, Stock Options, Common Stock Purchase Warrants and Restricted Stock

Potential common stock equivalents outstanding as of March 31, 2014 and March 31, 2013 consist of common stock equivalents of convertible preferred stock, stock options, common stock purchase warrants and restricted stock, which are summarized as follows:

	March 31,
	2014		2013
Common stock equivalents of convertible preferred stock		14,642,857		—
Common stock options		2,907,574		1,435,314
Common stock purchase warrants		21,047,641		200,000
Restricted stock awards		65,050		—
Total		38,663,122		1,635,314