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Note 2 - Acquisitions (Details Textual) |  |  |  | 9 Months Ended
--- | --- | --- | --- | ---
Jul. 27, 2022 USD ($) a | May 03, 2022 USD ($) a | Jan. 05, 2022 USD ($) shares | Sep. 30, 2023 USD ($) | Sep. 30, 2022 USD ($)
Repayments of Debt |  |  |  | $ 500,000 | $ 6,047,000
Asset Retirement Obligation Assumed |  |  |  | $ 2,504,000 | $ 11,889,000
Lubbock Acquisition [Member] |  |  |  |  |
Payments to Acquire Productive Assets |  |  | $ 125,000 |  |
Asset Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares) | shares |  |  | 6,568,828 |  |
Banner Acquisition [Member] |  |  |  |  |
Payments to Acquire Productive Assets |  |  | $ 1,000,000 |  |
Asset Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares) | shares |  |  | 6,790,524 |  |
Banner Acquisition [Member] | Long-Term Debt [Member] |  |  |  |  |
Asset Acquisition, Consideration Transferred, Liabilities Incurred |  |  | $ 3,300,000 |  |
Banner Acquisition [Member] | Derivative Financial Instruments, Liabilities [Member] |  |  |  |  |
Asset Acquisition, Consideration Transferred, Liabilities Incurred |  |  | 3,100,000 |  |
Synergy Acquisition [Member] |  |  |  |  |
Payments to Acquire Productive Assets |  |  | $ 125,000 |  |
Asset Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares) | shares |  |  | 6,546,384 |  |
January 2022 Acquisition [Member] |  |  |  |  |
Payments to Acquire Productive Assets |  |  | $ 1,250,000 |  |
Asset Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares) | shares |  |  | 19,905,736 |  |
Asset Acquisition, Consideration Transferred, Net |  |  | $ 66,400,000 |  |
Asset Acquisition, Consideration Transferred, Equity Interest Issued and Issuable |  |  | 64,694,000 |  |
Asset Acquisition, Purchase Price Adjustment |  |  | 487,000 |  |
Repayments of Debt |  |  | 3,347,000 |  |
Asset Retirement Obligation Assumed |  |  | 9,614,000 |  |
January 2022 Acquisition [Member] | Derivative Financial Instruments, Liabilities [Member] |  |  |  |  |
Asset Acquisition, Consideration Transferred, Liabilities Incurred |  |  | $ 3,100,000 |  |
Liberty County, Texas Acquisition [Member] |  |  |  |  |
Payments to Acquire Oil and Gas Property |  | $ 1,000,000 |  |  |
Area of Land (Acre) | a |  | 1,022 |  |  |
Suspense Accounts |  | $ 200,000 |  |  |
Asset Retirement Obligation Assumed |  | $ 500,000 |  |  |
East Texas Acquisition [Member] |  |  |  |  |
Payments to Acquire Productive Assets | $ 11,875,000 |  |  |  |
Asset Acquisition, Purchase Price Adjustment | $ (1,048,000) |  |  |  |
Area of Land (Acre) | a | 16,600 |  |  |  |
Asset Retirement Obligation Assumed | $ 1,689,000 |  |  |  |

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