Convertible Preferred Stock and Stockholders' Equity (Tables)

6 Months Ended

Jun. 30, 2014

Convertible Preferred Stock and Stockholders' Equity

Schedule of reserve for unissued shares of common stock

	Number of Shares
Common stock issued		59,955,343
Outstanding stock options		18,363,144
Outstanding common stock warrants		5,930,758
Outstanding Series A preferred stock		2,857,143
Additional shares available for grant under the 2005 Plan		604,093
Total		87,710,481