Common Stock Warrants	12 Months Ended
Dec. 31, 2011
Common Stock Warrants	8. Common Stock Warrants The Company issues warrants to purchase common shares of the Company either as compensation for services or as additional incentive for investors who may purchase common stock. The value of warrants issued for compensation is accounted for as a non-cash expense to the Company at the fair value of the warrants issued. In June 2007, in conjunction with the initial public offering, the Company issued 100,000 warrants to purchase 100,000 shares of its common stock at an exercise price of $7.70 to the underwriters as part of the initial public offering. There were no warrants granted during the years ended December 31, 2010 and 2011. As of December 31, 2011, all of the warrants were outstanding and exercisable and had a remaining contractual life of six months.

8. Common Stock Warrants

The Company issues warrants to purchase common shares of the Company either as compensation for services or as additional incentive for investors who may purchase common stock. The value of warrants issued for compensation is accounted for as a non-cash expense to the Company at the fair value of the warrants issued.

In June 2007, in conjunction with the initial public offering, the Company issued 100,000 warrants to purchase 100,000 shares of its common stock at an exercise price of $7.70 to the underwriters as part of the initial public offering. There were no warrants granted during the years ended December 31, 2010 and 2011. As of December 31, 2011, all of the warrants were outstanding and exercisable and had a remaining contractual life of six months.