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Stock-based Compensation (Tables)
9 Months Ended
Sep. 30, 2012
Disclosure Of Compensation Related Costs, Share-Based Payments [Abstract]  
Disclosure Of Share Based Payment Awards [Table Text Block]

The following summarizes the changes in common stock options for the nine months ended September 30, 2012:

 

   

 

Options

   

Weighted

Average

Exercise

Price

 
Outstanding at December 31, 2011     3,141,198     $ 1.65  
Granted     1,040,000     $ 2.04  
Exercised     (31,750 )   $ 0.61  
Forfeited     (250,000 )   $ 1.83  
Expired     (1,250 )   $ 1.40  
Outstanding at September 30, 2012     3,898,198     $ 1.75  
                 
Options exercisable at September 30, 2012     1,298,198     $ 1.39