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Share-Based Compensation
9 Months Ended
Sep. 30, 2014
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]  
Share-Based Compensation

8. Share-Based Compensation

During the nine months ended September 30, 2014, the Company issued 1,707,908 shares of common stock as a result of the exercise of options.

During the nine months ended September 30, 2014, the Company granted employees a total of 3,914,215 shares of restricted stock, and options to purchase a total of 2,267,394 shares of common stock, with vesting periods from 24 months to 36 months.

The Company also grants shares of restricted stock to non-employee Directors and, on occasion, will issue warrants to third parties for services. During the nine months ended September 30, 2014, the Company granted 1,000,002 shares of restricted stock to non-employee Directors, which vest after a one year period, and issued 1,800,000 fully vested warrants for services, which expire after five years.