Net Loss Per Share (Details)	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Anti-dilutive securities
Potentially dilutive common shares that have not been included in the net loss per common share calculations because the effect would have been anti-dilutive	5,360,999	4,544,137
Stock options
Anti-dilutive securities
Potentially dilutive common shares that have not been included in the net loss per common share calculations because the effect would have been anti-dilutive	5,351,999	4,535,137
Restricted stock
Anti-dilutive securities
Potentially dilutive common shares that have not been included in the net loss per common share calculations because the effect would have been anti-dilutive	9,000	9,000