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Net Income / (Loss) Per Common Share (Table)
6 Months Ended
Jun. 30, 2012
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share Reconciliation [Table Text Block]

Potential common shares outstanding as of June 30, 2012 and 2011:

 

    June 30, 2012     June 30, 2011  
Warrants     75,000       75,000  
Options     3,164,080       3,036,580