Activity Related to Notes (Detail) - USD ($) |
9 Months Ended | 12 Months Ended |
|---|---|---|
Feb. 29, 2016 |
May. 31, 2015 |
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| 2013 Convertible Notes | ||
| Debt Instrument [Line Items] | ||
| Face amount of Notes | $ 50,000 | $ 4,271,250 |
| Unamortized discount | (6,529) | |
| Conversions | (50,000) | (4,221,250) |
| Total carrying value of Notes | 43,471 | |
| Short-Term Convertible Notes | ||
| Debt Instrument [Line Items] | ||
| Face amount of Notes | 3,981,050 | 3,981,050 |
| Unamortized discount | (2,390,063) | |
| Conversions | (525,000) | |
| Payments upon maturity | (762,250) | |
| Total carrying value of Notes | $ 1,590,987 | |
| Short-Term Convertible Notes | Tender Offer | ||
| Debt Instrument [Line Items] | ||
| Conversions | $ (2,693,800) |
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- Definition The value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The cash outflow from the repayment of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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