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8. Net Loss per Common Share
6 Months Ended
Jun. 30, 2013
Notes to Financial Statements  
NOTE 8 - Net Loss per Common Share

Basic net loss per common share is calculated by dividing the net loss by the weighted average number of common shares outstanding during the period. Diluted earnings per share is calculated using the weighted average number of common shares outstanding plus dilutive common stock equivalents outstanding during the period. Common stock equivalents are excluded for the three and six month periods ended June 30, 2013 and 2012, respectively, since the effect is anti-dilutive due to the Company’s net losses. Common stock equivalents include stock options and warrants.

 

Basic weighted average common shares outstanding, and the potentially dilutive securities excluded from loss per share computations because they are anti-dilutive, are as follows as of June 30, 2013 and 2012, respectively:

 

    Three Month Period Ended     Six Month Period Ended  
    June 30,     June 30,  
    2013     2012     2013     2012  
Basic and diluted weighted average common stock shares outstanding     70,035,710       69,679,854       69,954,654       69,679,854  
Potentially dilutive securities excluded from loss per share computations:                                
Common stock options     19,823,747       19,748,227       19,823,747       19,748,227  
Common stock purchase warrants     7,718,750       7,718,750       7,718,750       7,718,750