Note 7 - Inventory (Details) - Schedule of Inventory, Current - USD ($) |
Aug. 31, 2019 |
May 31, 2019 |
|---|---|---|
| Schedule of Inventory, Current [Abstract] | ||
| Raw materials | $ 258,302 | $ 323,635 |
| Finished goods | 515,812 | 423,198 |
| Total | $ 774,114 | $ 746,833 |
| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount before valuation and LIFO reserves of raw materials expected to be sold, or consumed within one year or operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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