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Note 11 - Asset Retirement Obligations (Tables) | 9 Months Ended
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Apr. 30, 2022
Notes Tables |
Schedule of Change in Asset Retirement Obligation [Table Text Block] |
Balance, July 31, 2021 |  | $ | 3,938,655 |
Accretion |  |  | 407,696 |
Assumed from U1A Acquisition |  |  | 12,707,248 |
Balance, April 30, 2022 |  | $ | 17,053,599 |
Schedule Of Estimated Cash flow and Assumption Used For ARO [Table Text Block] |
|  | April 30, 2022 |  |  | July 31, 2021 |
Undiscounted amount of estimated cash flows |  |  | $28,738,663 |  |  |  |  | $8,221,018 |  |
Payable in years |  | 1 | to | 23 |  |  | 9 | to | 21 |
Inflation rate |  | 1.56% | to | 5.32% |  |  | 1.56% | to | 2.17% |
Discount rate |  | 3.72% | to | 6.35% |  |  | 5.50% | to | 5.96% |
Schedule Of Undiscounted Amounts Of Estimated Cash Flows [Table Text Block] |
Fiscal 2022 |  | $ | 148,021 |
Fiscal 2023 |  |  | 434,262 |
Fiscal 2024 |  |  | 932,264 |
Fiscal 2025 |  |  | 1,472,226 |
Fiscal 2026 |  |  | 2,489,425 |
Remaining balance |  |  | 23,262,465 |
|  | $ | 28,738,663 |

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- Definition Tabular disclosure of the changes in carrying amount of a liability for asset retirement obligations, for changes such as new obligations, changes in estimates of existing obligations, spending on existing obligations, property dispositions, and foreign currency translation. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849 + Details
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