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v3.24.3

Note 2 - Acquisitions and Divestitures (Details Textual) $ in Thousands, shares in Millions |  | 3 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Jun. 24, 2024 USD ($) a shares | Sep. 30, 2024 USD ($) | Sep. 30, 2024 USD ($) | Sep. 30, 2023 USD ($) | Sep. 30, 2024 USD ($) | Sep. 30, 2023 USD ($) | Dec. 31, 2023 USD ($) | Jun. 25, 2024 a
Asset Acquisition, Transaction Costs |  | $ 368 |  | $ 0 | $ 368 | $ 0 |  |
Proceeds from Sale of Oil and Gas Property and Equipment |  |  |  |  | $ 5,866 | $ 0 |  |
Asset Retirement Obligations, Relief Through Disposals |  |  |  |  |  |  | $ 500 |
Wells in Texas New Mexico [Member] |  |  |  |  |  |  |  |
Number of Wells [Member] |  |  |  |  | 245 |  |  |
Proceeds from Sale of Property, Plant, and Equipment |  |  |  |  | $ 5,900 |  |  |
Gain (Loss) on Disposition of Oil and Gas Property |  |  |  |  | 1,400 |  |  |
Wells and Overriding Royalty Interests in North Dakota, New Mexico, and Texas [Member] |  |  |  |  |  |  |  |
Gain (Loss) on Disposition of Oil and Gas Property |  |  |  |  |  |  | 0 |
Proceeds from Sale of Oil and Gas Property and Equipment |  |  |  |  |  |  | 7,000 |
Disposal Group,Transaction Costs |  |  |  |  |  |  | $ 400 |
Number of Wells Sold |  |  |  |  |  |  | 152 |
Number of Overriding Royalty Interests Sold |  |  |  |  |  |  | 7 |
Helium Acreage [Member] | Synergy Offshore LLC [Member] |  |  |  |  |  |  |  |
Oil and Gas, Undeveloped Acreage, Net (Acre) | a |  |  |  |  |  |  |  | 24
Asset Acquisition, Transaction Costs |  |  |  |  | $ 368 |  |  |
Asset Acquisition, Consideration Transferred, Transaction Cost |  |  | $ 547 |  |  |  |  |
Helium Acreage [Member] | Synergy Offshore LLC [Member] | Evaluation Expense, Land and Helium Reserve [Member] |  |  |  |  |  |  |  |
Asset Acquisition, Consideration Transferred, Transaction Cost |  |  | $ 179 |  |  |  |  |
Helium Acreage [Member] | Kevin Dome Structure [Member] |  |  |  |  |  |  |  |
Oil and Gas, Undeveloped Acreage, Net (Acre) | a | 144 |  |  |  |  |  |  |
Number of Wells [Member] | 2 |  |  |  |  |  |  |
Payments to Acquire Productive Assets | $ 2,000 |  |  |  |  |  |  |
Asset Acquisition, Equity Interest Issued or Issuable, Number of Shares [Member] (in shares) | shares | 2.6 |  |  |  |  |  |  |
Asset Acquisition, Transaction Costs | $ 400 |  |  |  |  |  |  |
Asset Acquisition, Percentage of Capital Costs Responsible for [Member] | 100.00% |  |  |  |  |  |  |
Helium Acreage [Member] | Kevin Dome Structure [Member] | Minimum [Member] |  |  |  |  |  |  |  |
Asset Acqusition, Amount of Capital Costs Incurred Related to Selling Party [Member] | $ 20,000 |  |  |  |  |  |  |
Helium Acreage [Member] | Kevin Dome Structure [Member] | US Energy [Member] |  |  |  |  |  |  |  |
Purchase and Sale Agreement, Percentage of Rights Acquired [Member] | 82.50% |  |  |  |  |  |  |
Helium Acreage [Member] | Kevin Dome Structure [Member] | WaveTech [Member} |  |  |  |  |  |  |  |
Purchase and Sale Agreement, Percentage of Rights Acquired [Member] | 17.50% |  |  |  |  |  |  |
Asset Acquisition, Consideration Transferred, Equity Interest Issued and Issuable | $ 2,700 |  |  |  |  |  |  |

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