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Stockholders' Equity (Tables)
6 Months Ended
Jun. 30, 2013
Stockholders' Equity [Abstract]  
Schedule of conversion of preferred stock issued to common stock
 
   
Shares of Preferred Stock Not Exchanged as of June 30, 2013
   
Conversion Ratio
   
Shares of Common Stock after Conversion of all Outstanding Shares of Preferred Stock Not yet Exchanged at June 30, 2013
 
                   
Series B preferred stock
   
83
     
132.07 
     
10,962