Stockholders' Equity (Details) - USD ($) |
3 Months Ended | 93 Months Ended | |
|---|---|---|---|
Oct. 31, 2015 |
Oct. 31, 2014 |
Oct. 31, 2015 |
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| Stockholders' Equity | |||
| Stockholders' equity at beginning of period | $ 32,695,621 | $ 38,068,058 | |
| Net loss | (7,037,391) | (4,061,116) | $ (53,600,000) |
| Stock-based compensation | 1,562,066 | 611,240 | |
| Stockholders' equity at end of period | $ 27,220,296 | $ 34,618,182 | $ 27,220,296 |
| X | ||||||||||
- Definition This element represents the amount of recognized equity-based compensation during the period, that is, the amount recognized as expense in the income statement (or as asset if compensation is capitalized). Alternate captions include the words "stock-based compensation". Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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