Note 17 - Supplemental Oil and Natural Gas Information (Unaudited) - Discounted Future Cash Flows From Oil and Gas Reserves (Details) - USD ($) $ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|---|---|---|---|
| Future cash inflows | $ 71,278 | $ 117,237 | |
| Production costs | (35,496) | (63,555) | |
| Development costs | (9,988) | (28,142) | |
| Income taxes | 0 | 0 | |
| Future net cash flows | 25,794 | 25,540 | |
| 10% annual discount factor | (9,066) | (1,714) | |
| Standardized measure of discounted future net cash flows | 16,727 | 23,826 | $ 60,282 |
| Approximation [Member] | |||
| Standardized measure of discounted future net cash flows | $ 16,728 | $ 23,826 |
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- Definition Amount of estimated future accumulated cash inflow for proved oil and gas reserves. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of estimated future accumulated cash outflow for costs to be incurred in developing proved oil and gas reserves. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of estimated future accumulated cash outflow for income tax expense for proved oil and gas reserves. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, before discount and after future accumulated cash outflow for development and production costs and future income tax expense, of estimated future accumulated cash inflow for proved oil and gas reserves. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of estimated future accumulated cash outflow for costs to be incurred in producing proved oil and gas reserves. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of discount on estimated future accumulated cash inflow, after future accumulated cash outflow for development and production costs and future income tax expense, for proved oil and gas reserves, using discount rate of 10 percent per year. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, after discount, future accumulated cash outflow for development and production costs, and future income tax expense, of estimated future accumulated cash inflow for proved oil and gas reserves. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Details
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