Note 5 - Derivative Financial Instruments - Price Risk Derivative Contracts (Details) - Not Designated as Hedging Instrument [Member] - Forecast [Member]	3 Months Ended
Sep. 30, 2025 $ / bbl bbl	Jun. 30, 2025 $ / bbl bbl	Mar. 31, 2025 $ / bbl bbl
Crude Oil Derivative Swap [Member]
Volume (MBbls) (Barrel of Oil) \| bbl	3,000	5,500	7,467
Price per Bbl (in USD per Barrel of Oil)	75.85	76.37	74.69
Floor price (in USD per Barrel of Oil)	0	0	0
Ceiling price (in USD per Barrel of Oil)	0	0	0
Deferred premium payable (in USD per Barrel of Oil)	0	0	0
Crude Oil Derivative Collar [Member]
Volume (MBbls) (Barrel of Oil) \| bbl	7,000	7,989	11,000
Price per Bbl (in USD per Barrel of Oil)	0	0	0
Floor price (in USD per Barrel of Oil)	65	64.38	63.64
Ceiling price (in USD per Barrel of Oil)	90.08	88.55	86.66
Deferred premium payable (in USD per Barrel of Oil)	2.28	2	1.54
Crude Oil Derivative Put [Member]
Volume (MBbls) (Barrel of Oil) \| bbl	2,000	9,000	9,000
Price per Bbl (in USD per Barrel of Oil)	0	0	0
Floor price (in USD per Barrel of Oil)	65.78	65.78	65.78
Ceiling price (in USD per Barrel of Oil)	0	0	0
Deferred premium payable (in USD per Barrel of Oil)	5	5	5

Deferred premium payable

No definition available.

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- Definition

The cap rate on a price risk derivative such as a cap or collar. A payment or receipt is triggered if the market rate exceeds the cap rate on the contract.

+ References

No definition available.

+ Details

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- Definition

Floor rate on a price risk derivative such as a floor or a collar. A payment or receipt is triggered if the market rate falls below the floor rate on the contract.

+ References

No definition available.

+ Details

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- Definition

Nominal volume used to calculate payments on a derivative instrument.

+ References

No definition available.

+ Details

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- Definition

The strike price on the price risk option contract such as a put option or a call option.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 320
-Name Accounting Standards Codification
-Section S99
-Paragraph 5
-Subparagraph (SX 210.12-13(Column A)(Footnote 3))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477271/946-320-S99-5

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 320
-Name Accounting Standards Codification
-Section S99
-Paragraph 5
-Subparagraph (SX 210.12-13(Column E))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477271/946-320-S99-5

+ Details

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- Details

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- Details

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- Details

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- Details

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- Details

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