Common Stock (Tables)

12 Months Ended

Dec. 31, 2015

Equity [Abstract]

Schedule of Reserved Shares of Common Stock

The Company had reserved shares of common stock, on an as if converted basis, for issuance as follows:

	As of December 31,
	2015	2014
Issuances under stock incentive plans	273,948	91,634
Issuances upon exercise of common stock warrants	61,595	198,662
Issuances under employee stock purchase plan	396,660	174,661
Issuances under inducement plan	449,889	141,500
	1,182,092	606,457