Stockholders' Equity

9 Months Ended

Sep. 30, 2011

Comprehensive Income (Loss) and Stockholders' Equity [Abstract]

Stockholders' Equity

12. Stockholders’ Equity

Reserved Common Stock

As of September 30, 2011, the Company has reserved 11,037,452 shares of common stock for options outstanding and available for grant under stock option plans.

Warrants

In connection with an acquisition in May 2000, the Company issued to the seller a warrant to purchase 40,625 shares of common stock at a price of $2.36 per share. In 2007, the seller exercised warrants to purchase 30,981 shares of common stock using the conversion rights in the warrants. As result of the exercise using the conversion rights, the Company issued 26,024 shares of common stock to the seller and cancelled the 4,957 shares received in lieu of payment of the exercise price. In 2008, the seller exercised additional warrants to purchase 8,375 shares of common stock using the conversion rights in the warrants. As a result of the exercise using the conversion rights, the Company issued 6,886 shares of common stock to the seller and cancelled the 1,489 shares received in lieu of payment of the exercise price. The balance of the unexercised portion of the warrant expired in the second quarter of 2010.