Annual report pursuant to Section 13 and 15(d)

Acquisition Obligation (Details 2)

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Acquisition Obligation (Details 2) - USD ($)
Jul. 31, 2015
Jul. 31, 2014
Mar. 24, 2011
Acquisition Obligation      
Scheduled payments under asset purchase agreement to Inovio     $ 3,000,000
Payment obligation $ 0 $ 0