Private Securities Offering - Additional Information (Detail) - Entity [Domain] - USD ($) |
2 Months Ended | 12 Months Ended | ||||
|---|---|---|---|---|---|---|
Oct. 23, 2013 |
May. 31, 2013 |
May. 31, 2015 |
May. 31, 2014 |
Feb. 06, 2015 |
Sep. 26, 2014 |
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| Equity and Equity Units Offering Disclosure [Line Items] | ||||||
| Warrant exercise price | $ 0.75 | $ 0.50 | ||||
| Convertible notes term | 6 months | 6 months | ||||
| Convertible notes | $ 3,981,050 | $ 4,862,257 | $ 1,500,000 | $ 2,000,000 | ||
| Convertible note conversion price per share | $ 0.75 | $ 0.65 | ||||
| Convertible notes, interest rate | 7.00% | 5.00% | ||||
| Term of warrants | 5 years | 5 years | ||||
| Private Equity Offering | ||||||
| Equity and Equity Units Offering Disclosure [Line Items] | ||||||
| Units sold at private equity offering | 11,153,850 | |||||
| Price per unit | $ 1.30 | |||||
| Proceeds from units sold at private equity offering | $ 14,500,000 | |||||
| Number of common stock per unit | 2 | |||||
| Number of shares issued | 20,989,494 | |||||
| Warrant to purchase common share | 1 | |||||
| Warrant exercise price | $ 0.75 | $ 0.75 | ||||
| Number of common stock warrants issued | 11,153,850 | |||||
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- Definition Class of Warrant or Right, Term No definition available.
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- Definition Equity and Equity Units Offering Disclosure [Line Items] No definition available.
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- Definition Net Proceeds From Private Placement Offering No definition available.
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- Definition Number Of Common Stock Per Unit No definition available.
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- Definition Stock Issued During Period, Shares, Common Stock Warrants No definition available.
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- Definition Exercise price per share or per unit of warrants or rights outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Number of securities into which each warrant or right may be converted. For example, but not limited to, each warrant may be converted into two shares. No definition available.
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- Definition Including the current and noncurrent portions, carrying amount of debt identified as being convertible into another form of financial instrument (typically the entity's common stock) as of the balance sheet date, which originally required full repayment more than twelve months after issuance or greater than the normal operating cycle of the company. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The price per share of the conversion feature embedded in the debt instrument. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available.
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- Definition Total units issued during the year due to the sale of units. All partners include general, limited and preferred partners. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction. No definition available.
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- Definition Number of new stock issued during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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