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Note 12 - Commitments and Contingencies (Details Textual) - USD ($) | 6 Months Ended |  |
--- | --- | --- | ---
Feb. 28, 2021 | May 31, 2021 | May 31, 2020
Accrued Bonuses |  | $ 1,766,667 | $ 1,200,000
Entity Wide Trade Joint Venture Receivables, Three Joint Ventures, Percentage |  | 73.70% | 56.20%
Fiscal 2018 Bonus Plan [Member] | Executive Officer [Member] |  |  |
Percentage of Individual Bonus Payout Determined by Actual Versus Targeted EBITOI Results | 75.00% |  |
Percentage of Individuals Payout Determined Upon Achievement of Certain Pre-Established Individual Performance Objectives | 25.00% |  |

X
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X
- Definition Percentage of individual's bonus payout determined based upon the Company's actual EBITOI for the fiscal year compared to pre-established target EBITOI for the fiscal year. + References No definition available. + Details
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