Note 7 - Other Assets (Tables) |
3 Months Ended | ||||||||||||||||||||||||||||||||||||
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Aug. 31, 2018 | |||||||||||||||||||||||||||||||||||||
| Other Non-current Assets Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||
| Schedule of Other Assets [Table Text Block] |
Other assets included the following as of August 31, 2018 and May 31, 2018, respectively:
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Tabular disclosure of the carrying amounts of other assets. This disclosure includes other current assets and other noncurrent assets. No definition available.
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