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Stockholders' Equity (Details)
 6 Months Ended
Jun. 30, 2012
Summary of preferred stock not yet converted  
Shares of Preferred Stock Not Exchanged as of March 31, 2011 178
Shares of Common Stock after Conversion of all Outstanding Shares of Preferred Stock Not yet Exchanged at June 30, 2012 52,439
Series A Preferred Stock [Member]
  
Summary of preferred stock not yet converted  
Shares of Preferred Stock Not Exchanged as of March 31, 2011 83
Preferred Stock Conversion Ratio 480.63
Shares of Common Stock after Conversion of all Outstanding Shares of Preferred Stock Not yet Exchanged at June 30, 2012 39,892
Series B Preferred Stock [Member]
  
Summary of preferred stock not yet converted  
Shares of Preferred Stock Not Exchanged as of March 31, 2011 95
Preferred Stock Conversion Ratio 132.07
Shares of Common Stock after Conversion of all Outstanding Shares of Preferred Stock Not yet Exchanged at June 30, 2012 12,547