Derivative Liability - Additional Information (Detail) - USD ($) |
3 Months Ended | 6 Months Ended | ||
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Nov. 30, 2017 |
Nov. 30, 2016 |
Nov. 30, 2017 |
Nov. 30, 2016 |
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| Derivative [Line Items] | ||||
| Change in fair value of derivative liability | $ 829,600 | $ 1,223,466 | $ 466,934 | $ 1,223,466 |
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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 Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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