Note 10 - Right to Use Assets and Liabilities - Operating Leases (Details) - Lessee, Operating Lease, Disclosure - USD ($) |
Aug. 31, 2019 |
Jun. 01, 2019 |
May 31, 2019 |
|---|---|---|---|
| Lessee, Operating Lease, Disclosure [Abstract] | |||
| Right to use assets | $ 746,599 | $ 1,781,446 | $ 0 |
| Amount amortized | $ (1,034,847) |
| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of lessee's right to use underlying asset under operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition The amount of accumulated depreciation, by major property class, recorded on property subject to or available for lease as of the balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
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