Note 8 - Intangible Assets (Tables) |
3 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Aug. 31, 2016 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Disclosure Text Block [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Finite-Lived Intangible Assets [Table Text Block] | Intangible assets consisted of the following at August 31, 2016 and May 31, 2016.
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- References No definition available.
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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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