Quarterly Financial Data (Unaudited) (Details) |
3 Months Ended | 12 Months Ended | 90 Months Ended | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
May. 18, 2015 |
Jul. 31, 2015
USD ($)
$ / shares
|
Apr. 30, 2015
USD ($)
$ / shares
|
Jan. 31, 2015
USD ($)
$ / shares
|
Oct. 31, 2014
USD ($)
$ / shares
|
Jul. 31, 2014
USD ($)
$ / shares
|
Apr. 30, 2014
USD ($)
$ / shares
|
Jan. 31, 2014
USD ($)
$ / shares
|
Oct. 31, 2013
USD ($)
$ / shares
|
Jul. 31, 2015
USD ($)
$ / shares
|
Jul. 31, 2014
USD ($)
$ / shares
|
Jul. 31, 2013
USD ($)
$ / shares
|
Jul. 31, 2015
USD ($)
|
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| Quarterly Financial Data (Unaudited) | |||||||||||||||
| Total operating expenses | $ (6,576,413) | $ (5,986,286) | $ (4,618,237) | $ (4,060,206) | $ (3,543,358) | $ (3,816,030) | $ (2,601,780) | $ (1,988,493) | |||||||
| Loss from operations | (6,576,413) | (5,986,286) | (4,618,237) | (4,060,206) | (3,543,358) | (3,816,030) | (2,601,780) | (1,988,493) | $ (21,241,142) | $ (11,949,660) | $ (7,064,972) | ||||
| Net loss | (6,576,413) | (5,987,345) | (4,618,237) | (4,061,116) | (3,543,358) | (3,816,844) | (2,600,429) | (2,051,486) | |||||||
| Net loss applicable to common stockholders | $ (6,576,413) | $ (5,987,345) | $ (4,618,237) | $ (4,061,116) | $ (3,543,358) | $ (3,816,844) | $ (2,600,429) | $ (2,051,486) | $ (21,243,111) | $ (12,012,117) | $ (7,150,187) | $ (46,606,143) | |||
| Basic and diluted net loss per share (in dollars per share) | $ / shares | [1] | $ 0.48 | $ 0.48 | $ 0.38 | $ 0.33 | $ 0.30 | $ 0.37 | $ 0.29 | $ 0.28 | $ 1.67 | $ 1.26 | $ 1.34 | |||
| Reverse stock split ratio | 0.05 | ||||||||||||||
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- Definition The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. No definition available.
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- 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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- Definition Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense. No definition available.
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- Definition The net result for the period of deducting operating expenses from operating revenues. No definition available.
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- References No definition available.
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- Definition Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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