Note 4 - Unproved Oil and Gas Properties, Full Cost Method - Schedule of Changes to Oil and Gas Properties (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
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| Drilling costs, and other operational related costs | $ 1,952 | $ 3,847 | $ 4,738 | $ 4,272 | ||||||||
| Capitalized salary costs | 89 | 26 | 168 | 52 | ||||||||
| Legal and seismic costs, license fees and other preparation costs | 194 | 263 | 620 | 579 | ||||||||
| Oil and Gas, Full Cost Method, Capitalized Cost Excluded from Amortization, Period Cost | $ 2,235 | [1] | $ 4,136 | [1] | $ 5,526 | [2] | $ 4,903 | [2] | ||||
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