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Capitalization, Convertible Preferred Stock (Details) (Series A Convertible Preferred Stock [Member], USD $)
1 Months Ended 6 Months Ended
Nov. 30, 2008
Jun. 30, 2011
Series A Convertible Preferred Stock [Member]
   
Class of Stock [Line Items]    
Stock Issued During Period, Shares, New Issues 477,800  
Convertible Preferred Stock, Shares Issued upon Conversion   10
Convertible Preferred Stock, Settlement Terms   Common shares
Preferred Stock, Liquidation Preference Per Share (dollars per share)   $ 0.10