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Related Party Transactions (Details) - USD ($)
 1 Months Ended 3 Months Ended 6 Months Ended
Mar. 24, 2012
Sep. 28, 2011
Mar. 24, 2010
May. 31, 2014
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Dec. 31, 2014
Related-Party Transactions (Textual) [Abstract]                  
Long-term other assets         $ 581,342   $ 581,342   $ 474,568
Subsidiary ownership percentage by parent       91.00%          
Receivable from sale of intangible assets       $ 1,000,000          
Future payments to be received from sale of intangible assets       $ 1,000,000          
Equity ownership percentage after transaction       20.00%          
Maximum amount of additional equity fundraising       $ 10,000,000          
Carrying value of investment         0   0    
GeneOne Life Sciences [Member]                  
Related-Party Transactions (Textual) [Abstract]                  
Payment received for license granted     $ 3,000,000            
Deferred revenue from affiliated entity     $ 3,000,000            
Period over which deferred revenue from affiliated entity will be recognized in years     8 years            
Revenue from related parties         113,000 $ 138,000 225,000 $ 254,000  
Operating expenses related to affiliated entity         5,300,000 $ 2,600,000 5,400,000 $ 3,700,000  
Accounts receivable balance         7,000   7,000   2,000
Accounts payable and accrued liability         3,300,000   3,300,000   28,000
Long-term other assets         $ 196,000   $ 196,000   $ 260,000
OncoSec [Member] | First warrant [Member]                  
Related-Party Transactions (Textual) [Abstract]                  
Common stock purchase warrant (in shares)   50,000              
Term of the warrants in years   5 years              
Exercise price of a five-year warrant ($ per share)   $ 24.00              
OncoSec [Member] | Second warrant [Member]                  
Related-Party Transactions (Textual) [Abstract]                  
Common stock purchase warrant (in shares) 150,000                
Term of the warrants in years 5 years                
Exercise price of a five-year warrant ($ per share) $ 20.00