Basic and Diluted Net Loss Per Common Share

3 Months Ended

Mar. 31, 2012

Basic and Diluted Net Loss Per Common Share [Abstract]

Basic and Diluted Net Loss Per Common Share

5. Basic and Diluted Net Loss Per Common Share

Basic and diluted net loss per common share is computed based on the weighted-average number of common shares outstanding. Common share equivalents (which consist of options and warrants) are excluded from the computation of diluted net loss per common share where the effect would be anti-dilutive.  Common share equivalents that could potentially dilute basic earnings per share in the future, and which were excluded from the computation of diluted loss per share, totaled approximately 67.0 million shares at March 31, 2012 and 18.9 million shares at March 31, 2011.