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Cash and Cash Equivalents and Liquidity (Details) (USD $)
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3 Months Ended | 6 Months Ended | 12 Months Ended | 78 Months Ended | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Jul. 31, 2014
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Apr. 30, 2014
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Jan. 31, 2014
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Oct. 31, 2013
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Jul. 31, 2013
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Apr. 30, 2013
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Jan. 31, 2013
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Oct. 31, 2012
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Jul. 31, 2008
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Jul. 31, 2014
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Jul. 31, 2013
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Jul. 31, 2012
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Jul. 31, 2011
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Jul. 31, 2010
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Jul. 31, 2009
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Jul. 31, 2014
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| Cash and Cash Equivalents and Liquidity | ||||||||||||||||
| Losses in all previous reporting periods from inception to date | $ 3,543,357 | $ 3,816,844 | $ 2,600,429 | $ 2,051,486 | $ 1,772,615 | $ 1,728,659 | $ 1,621,988 | $ 2,026,925 | $ 7,187 | $ 12,012,117 | $ 7,150,187 | $ 2,364,852 | $ 3,758,817 | $ 36,158 | $ 33,714 | $ 25,363,032 |
| Cash and cash equivalents | $ 37,852,694 | $ 4,970,175 | $ 37,852,694 | $ 4,970,175 | $ 5,141,509 | $ 2,457,693 | $ 37,852,694 | |||||||||