Note 4 - Unproven Oil and Gas Properties, Full Cost Method (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Drilling costs, and other operational related costs	$ 6,426	$ 2,538
Capitalized salary costs	2,546	2,444
Capitalized interest costs	1,418	1,418
Legal and seismic costs, license fees and other preparation costs	11,253	10,198
Other costs	39	39
Oil and Gas, Full Cost Method, Capitalized Cost Excluded from Amortization	$ 21,682	$ 16,637

Amount of capitalized acquisition cost excluded from amortization for investment in unproved property and development project in oil- and gas-producing activities accounted for under full cost method. Excludes exploration and development costs and capitalized interest.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 932
-SubTopic 360
-Name Accounting Standards Codification
-Section S50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477385/932-360-S50-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 932
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-10(c)(7)(ii)(A))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479664/932-10-S99-1

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Amount of capitalized cost excluded from amortization for investment in unproved property and development project for oil- and gas-producing activities accounted for under full cost method. Includes, but is not limited to, acquisition, exploration, and development costs for development project and capitalized interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 932
-SubTopic 360
-Name Accounting Standards Codification
-Section S50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477385/932-360-S50-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 932
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-10(c)(7)(ii))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479664/932-10-S99-1

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Amount of capitalized development cost excluded from amortization for investment in unproved property and development project in oil- and gas-producing activities accounted for under full cost method. Excludes acquisition and exploration costs and capitalized interest.

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Amount of capitalized exploration cost excluded from amortization for investment in unproved property and development project in oil- and gas-producing activities accounted for under full cost method. Excludes acquisition and development costs and capitalized interest.

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Amount of capitalized interest excluded from amortization for investment in unproved property and development project in oil- and gas-producing activities accounted for under full cost method. Excludes acquisition, exploration, and development costs.

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