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Note 14 - Supplemental Cash Flow Information (Tables) | 9 Months Ended
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May 31, 2020
Notes Tables |
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] |
|  | Three Months Ended
|  | May 31, 2020 |  | May 31, 2019
Cash paid for interest |  | $ | 10,724 |  |  | $ | 5,165 |
Cash paid for income taxes |  |  | — |  |  |  | — |
|  | Nine Months Ended
|  | May 31, 2020 |  | May 31, 2019
Cash paid for interest |  | $ | 20,101 |  |  | $ | 11,357 |
Cash paid for income taxes |  |  | — |  |  |  | 53,975 |

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