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Basic and Diluted Net Loss Per Common Share
9 Months Ended
Sep. 30, 2012
Basic and Diluted Net Loss Per Common Share [Abstract]  
Basic and Diluted Net Loss Per Common Share
5. Basic and Diluted Net Income (Loss) Per Common Share
 
Basic and diluted net income (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 income (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 income (loss) per share, totaled 9.1 million shares and 9.6 million shares for the three-month and nine-month periods ended September 30, 2012, respectively, and 9.1 million shares and 2.7 million shares, respectively, for the three-month and nine-month periods ended September 30, 2011.