Note 16 - Variable Interest Entity - Schedule of Aggregate Net Funding (Details) - Genie Retail Energy (“GRE”) [Member] - Variable Interest Entity, Primary Beneficiary [Member] - USD ($) $ in Thousands |
10 Months Ended | 12 Months Ended | |
|---|---|---|---|
Nov. 07, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Net income (loss) | $ 207 | $ (276) | $ (850) |
| Aggregate funding paid to (provided by) the Company, net | $ 307 | $ 271 | $ (1,104) |