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Loss Per Share (Tables)
6 Months Ended
Jun. 30, 2013
Loss Per Share Tables  
Schedule of Weighted Average Number of Shares
Loss per common share has been computed based on the following:

 

   Three Months Ended   Six Months Ended 
   June 30,   June 30, 
   2013   2012   2013   2012 
Weighted-average number of common shares outstanding used to calculate basic and diluted loss per common share   7,882,623    6,670,971    7,880,250    6,538,901