Intangible Assets Activity (Detail) - USD ($) |
Feb. 28, 2018 |
May 31, 2017 |
|---|---|---|
| Acquired Finite-Lived Intangible Assets [Line Items] | ||
| Gross carrying amounts | $ 3,500,000 | $ 3,500,000 |
| Accumulated amortization | (1,881,327) | (1,618,770) |
| Total amortizable intangible assets, net | 1,618,673 | 1,881,230 |
| Patents currently not amortized | 35,989 | 35,989 |
| Carrying value of intangibles, net | $ 1,654,662 | $ 1,917,219 |
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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 Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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