Net Loss per Share

9 Months Ended

Sep. 30, 2012

Net Loss Per Share [Abstract]

Net Loss per Share

5. Net Loss per Share

Basic net loss per share is computed by dividing net loss by the weighted average number of shares of common stock outstanding for the period. The Company's potential dilutive shares, which include outstanding common stock options, unvested restricted stock and warrants, have not been included in the computation of diluted net loss per share for any of the periods presented as the result would be anti-dilutive. Such potential shares of common stock at September 30, 2012 and 2011 consist of the following:

	For the Nine Months Ended September 30,
	2012		2011
Stock options		5,361,487		4,981,398
Unvested restricted common stock		922,838		298,752
Warrants		11,197,454		13,179,885
		17,481,779		18,460,035