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Related Party Transactions (Details) (USD $)
1 Months Ended 3 Months Ended 3 Months Ended 1 Months Ended
Mar. 31, 2013
Dec. 31, 2012
Mar. 24, 2010
VGX Int'l [Member]
Mar. 31, 2013
VGX Int'l [Member]
Mar. 31, 2012
VGX Int'l [Member]
Dec. 31, 2012
VGX Int'l [Member]
Mar. 31, 2013
OncoSec [Member]
Sep. 28, 2011
OncoSec [Member]
First warrant [Member]
Mar. 24, 2012
OncoSec [Member]
Second warrant [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       106,000 106,000        
Operating expenses related to affiliated entity       455,000 190,000        
Accounts receivable from related parties       44,000   36,000      
Payments received from affiliate             1,000,000    
Additional future scheduled payments from affiliated entity             2,000,000.0    
Term of future scheduled payments from affiliated entity             3 years    
Receivable from related party $ 43,537 $ 36,234         $ 0    
Common stock purchase warrant               1,000,000 3,000,000
Term of the warrants in years               5 years 5 years
Exercise price of a five-year warrant               $ 1.20 $ 1.00