Net Deferred Tax Assets and Liabilities (Detail) - USD ($) |
May 31, 2017 |
May 31, 2016 |
|---|---|---|
| Schedule Of Income Taxes [Line Items] | ||
| Net operating loss | $ 32,530,436 | $ 23,510,608 |
| SFAS 123r expense on non-qualified stock options | 4,284,246 | 3,873,597 |
| Charitable contributions | 25,500 | 56,950 |
| Accrued expenses | 216,645 | 378,321 |
| Fixed assets | 1,300 | (1,236) |
| Amortization | 186,772 | 147,098 |
| Capitalized debt issuance costs | 157,992 | |
| Debt discount | (31,072) | |
| Valuation allowance | (37,371,819) | (27,965,338) |
| Deferred Tax Assets, Net, Noncurrent, Total | $ 0 | $ 0 |
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- Definition Deferred Tax Assets, Amortization No definition available.
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- Definition Deferred Tax Assets Charitable Contributions No definition available.
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- Definition Deferred Tax Assets (Liabilities) Net, Property, Plant and Equipment No definition available.
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- Definition Deferred tax assets tax deferred capitalized debt issuance costs. No definition available.
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- Definition Schedule Of Income Taxes [Line Items] No definition available.
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- Definition Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, with jurisdictional netting and classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from compensation and benefits costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from accrued liabilities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of deferred tax liability attributable to taxable temporary differences from financing arrangements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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