Acquisition Obligation (Details 2) (USD $)
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3 Months Ended | ||||||
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Mar. 24, 2011
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Oct. 31, 2013
Upon the closing of the Asset Purchase Agreement
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Oct. 31, 2013
September 30, 2011
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Oct. 31, 2013
March 31, 2012
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Oct. 31, 2013
September 24, 2012
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Oct. 31, 2013
March 31, 2013
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Oct. 31, 2013
December 31, 2013
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Acquisition obligation | |||||||
Scheduled payments under asset purchase agreement to Inovio | $ 3,000,000 | ||||||
Scheduled payments | $ 250,000 | $ 100,000 | $ 150,000 | $ 500,000 | $ 1,000,000 | $ 1,000,000 |