Net Loss per Share (Tables)

6 Months Ended

Jun. 30, 2016

Earnings Per Share [Abstract]

Schedule of Securities Not Included in Diluted per Share Calculations

Securities that were not included in the diluted per share calculations because they would be anti-dilutive were as follows (in shares):

	Six Months Ended June 30,
	2016		2015
Options to purchase common stock		3,768,293		4,094,707
Warrants to purchase common stock		1,336,894		1,336,894
Total		5,105,187		5,431,601