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Related Party Transactions (Details) (USD $)
In Millions, except Per Share data, unless otherwise specified
6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Dec. 31, 2009
Related Party Transactions (Textual) [Abstract]      
Shares of common stock of Biovest International, Inc.     2
Closing bid price     $ 0.89
Derivative loss   $ 0.7  
Derivative gain $ 0.01