Note 10 - Right to Use Assets and Liabilities - Operating Leases (Details) - Lease, Cost - USD ($) |
3 Months Ended | |||
|---|---|---|---|---|
Aug. 31, 2019 |
Aug. 31, 2018 |
Jun. 01, 2019 |
May 31, 2019 |
|
| Lease, Cost [Abstract] | ||||
| Lease liability | $ 888,145 | $ 1,781,446 | ||
| Less: current portion | (437,808) | $ 0 | ||
| Lease liability, non-current | 450,337 | $ 0 | ||
| Amount amortized | $ (893,301) | $ 0 | ||
| X | ||||||||||
- Definition Amount of increase (decrease) in operating liabilities classified as other. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Present value of lessee's discounted obligation for lease payments from operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Present value of lessee's discounted obligation for lease payments from operating lease, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|