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Related-Party Transactions (Details) (USD $)	1 Months Ended		3 Months Ended		9 Months Ended			9 Months Ended		1 Months Ended
	Jul. 31, 2011 VGX Int'l [Member]	Mar. 24, 2010 VGX Int'l [Member]	Sep. 30, 2012 VGX Int'l [Member]	Sep. 30, 2011 VGX Int'l [Member]	Sep. 30, 2012 VGX Int'l [Member]	Sep. 30, 2011 VGX Int'l [Member]	Dec. 31, 2011 VGX Int'l [Member]	Sep. 30, 2012 OncoSec [Member]	Dec. 31, 2011 OncoSec [Member]	Sep. 28, 2011 OncoSec [Member] First warrant [Member]	Mar. 24, 2012 OncoSec [Member] Second warrant [Member]
Related-Party Transactions (Textual) [Abstract]
Additional shares purchased in VGX Int'l	145,000
Sale price per share	$ 0.71
Percentage of ownership	16.10%
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			222,000	106,000	435,000	305,000
Payments received from affiliate								1,000,000
Operating expenses related to affiliated entity			288,000	2,500,000	616,000	4,900,000
Accounts receivable from related parties			116,000		116,000		20,000	18,000	18,000
Additional future scheduled payments from affiliated entity								$ 2,000,000
Term of future scheduled payments from affiliated entity								3 years
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

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