Note 2 - Acquisitions and Divestitures (Details Textual) $ in Millions	Jan. 07, 2025 USD ($) a shares	Jun. 24, 2024 a
Property [Member] \| Kevin Dome Structure [Member] \| Synergy Purchase Agreement [Member]
Oil and Gas, Undeveloped Acreage, Net (Acre) \| a	24,000
Payments to Acquire Productive Assets	$ 2.0
Asset Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares) \| shares	1,400,000
Asset Acquisition, Consideration Transferred, Equity Interests Issued or Issuable, Percentage of Outstanding Stock	4.76%
Asset Acquisition, Percentage of Capital Costs Responsible for	100.00%
Asset Acquisition, Repayment of Capital Costs, Period From Closing Date (Month)	78 months
Asset Acqusition, Amount of Capital Costs Incurred Related to Selling Party	$ 20.0
Asset Acquisition, Contingent Consideration, Percentage of Gain on Sale of Initial Gas Processing Plant	18.00%
Asset Acquisition, Consideration Transferred	$ 4.7
Helium Acreage [Member] \| Kevin Dome Structure [Member]
Oil and Gas, Undeveloped Acreage, Net (Acre) \| a		144,000
Synergy Offshore LLC [Member] \| Property [Member] \| Kevin Dome Structure [Member] \| Synergy Purchase Agreement [Member]
Subsidiary, Ownership Percentage, Noncontrolling Owner	20.00%
Synergy Offshore LLC [Member] \| Board of Directors Chairman [Member]
Beneficial Ownership Percentage	60.00%

Percentage of outstanding stock for equity interest issued or issuable as consideration for the asset acquisition.

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- Definition

Percentage of gain on sale of initial gas processing plant to be paid as contingent consideration of the asset acquisition.

+ References

No definition available.

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Number of shares of equity interests issued or issuable to acquire assets.

+ References

No definition available.

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- Definition

Represents the percentage of capital costs that the purchasing party is responsible for.

+ References

No definition available.

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Period from the closing date that capital costs will be repaid under the asset acquisition.

+ References

No definition available.

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Represents the amount of capital costs that the selling party is responsible for in an asset acquisition.

+ References

No definition available.

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- Definition

Percentage of beneficial ownership.

+ References

No definition available.

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- Definition

Leased area representing summation of fractional ownership working interest to whole on which oil and gas wells have not been drilled or completed that would permit production of economic quantities of oil and gas. Excludes area of undrilled acreage held by production under terms of lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Regulation S-K (SK)
-Number 229
-Section 1208
-Paragraph b
-Publisher SEC

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- Definition

Amount of consideration transferred in asset acquisition. Includes, but is not limited to, cash, liability incurred by acquirer, and equity interest issued by acquirer.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 805
-SubTopic 50
-Name Accounting Standards Codification
-Section 55
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479908/805-50-55-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

+ References

No definition available.

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- Definition

The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 805
-SubTopic 50
-Name Accounting Standards Codification
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-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480060/805-50-25-1

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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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