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Intangible Assets Activity (Detail) (USD $)
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Feb. 28, 2015
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May 31, 2014
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| Acquired Finite-Lived Intangible Assets [Line Items] | ||
| Gross carrying amounts | $ 3,500,000us-gaap_FiniteLivedIntangibleAssetsGross | $ 3,500,000us-gaap_FiniteLivedIntangibleAssetsGross |
| Accumulated amortization | (831,250)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization | (568,750)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization |
| Total amortizable intangible assets, net | 2,668,750us-gaap_FiniteLivedIntangibleAssetsNet | 2,931,250us-gaap_FiniteLivedIntangibleAssetsNet |
| Patents currently not amortized | 35,989us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill | 35,989us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill |
| Carrying value of intangibles, net | $ 2,704,739us-gaap_IntangibleAssetsNetExcludingGoodwill | $ 2,967,239us-gaap_IntangibleAssetsNetExcludingGoodwill |
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- Details
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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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