Stockholders' Equity

6 Months Ended

Jun. 30, 2016

Equity [Abstract]

Stockholders' Equity

Stockholders’ Equity

Common Stock

The Company had reserved shares of common stock for issuance as follows:

	June 30, 2016	December 31, 2015
Options issued and outstanding	5,362,144	4,179,521
Options available for grant under stock option plans	876,886	1,058,359
Common stock available for the Employee Stock Purchase Plan	684,272	750,000
Total	6,923,302	5,987,880