| Dec 31, 2012 | Dec 31, 2013 | Dec 31, 2014 | Dec 31, 2015 | Dec 31, 2016 | Dec 31, 2017 | Dec 31, 2018 | Dec 31, 2019 | Dec 31, 2020 | Dec 31, 2021 | Dec 31, 2022 | Dec 31, 2023 | Dec 31, 2024 |
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| Electricity | - | - | - | - | - | - | - | - | 312 | 316 | 242 | 351 | 351 |
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| Natural gas | - | - | - | - | - | - | - | - | 42 | 39 | 62 | 56 | 52 |
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| Other | - | - | - | - | - | - | - | - | 26 | 9 | 12 | 22 | 23 |
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| Revenues | 229 | 279 | 275 | 210 | 212 | 264 | 280 | 315 | 379 | 364 | 316 | 429 | 425 |
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| Cost of Revenue | 160 | 213 | 223 | 141 | 135 | 179 | 204 | 232 | 282 | 259 | 161 | 283 | 287 |
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| Gross Profit | 70 | 66 | 52 | 69 | 77 | 86 | 77 | 83 | 98 | 105 | 155 | 146 | 138 |
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| Selling, General and Administrative Expense | 54 | 50 | 61 | 66 | 62 | 80 | 62 | 72 | 77 | 72 | 75 | 91 | 93 |
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| Amount of change in provision for Captive insuarance liability. | - | - | - | - | - | - | - | - | - | - | - | 45 | 34 |
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| Impairment of assets | - | - | - | - | - | - | 3 | 0 | 1 | - | 2 | - | 0 |
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| Income from operations | 3 | 1 | -26 | -6 | -31 | -7 | 12 | 10 | 19 | 33 | 78 | 10 | 11 |
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| Investment Income, Interest | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 5 | 7 |
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| Interest Expense, Debt | - | - | - | - | - | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
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| Unrealized loss on marketable equity securities and other investments | - | - | - | - | - | - | - | - | - | - | -0 | 0 | 0 |
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| Other Nonoperating Income (Expense) | -0 | -0 | 0 | -0 | 0 | -0 | 0 | 1 | 1 | 1 | -1 | 3 | 2 |
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| Income (loss) From Continuing Operations Before Income Taxes, Extraordinary Items, Noncontrolling Interest | 0 | -3 | -27 | -8 | -30 | -7 | 9 | 6 | 24 | 33 | 78 | 18 | 20 |
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| Provision for (benefit from) income taxes | 3 | 3 | 0 | 1 | 2 | 2 | 12 | 5 | 8 | 9 | 21 | 4 | 5 |
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| Net income from continuing operations | - | - | - | - | - | - | - | - | - | 24 | 56 | 14 | 15 |
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| (Loss) income from discontinued operations, net of tax | - | - | - | - | - | - | - | - | - | 4 | 30 | 6 | -3 |
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| Net (loss) income | -3 | -5 | -27 | -9 | -32 | -9 | 21 | 1 | 16 | 28 | 87 | 20 | 12 |
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| Net loss (income) attributable to noncontrolling interests | 1 | 1 | -1 | -1 | -8 | -2 | -1 | -3 | 2 | -1 | -1 | 1 | -0 |
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| Net Income (Loss) Attributable to Parent | -3 | -5 | -26 | -7 | -25 | -7 | 23 | 4 | 16 | 29 | 88 | 20 | 13 |
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| Dividend on preferred stock | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 0 | - |
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| NET INCOME ATTRIBUTABLE TO GENIE ENERGY LTD. COMMON STOCKHOLDERS | -3 | -7 | -28 | -9 | -26 | -8 | 21 | 3 | 12 | 28 | 86 | 19 | 13 |
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| NET INCOME FROM CONTINUING OPERATIONS | - | - | - | - | - | - | - | - | - | 24 | 60 | 13 | 15 |
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| (Loss) income from discontinued operations | - | - | - | - | - | - | - | - | - | 4 | 26 | 6 | -3 |
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| NET INCOME ATTRIBUTABLE TO GENIE ENERGY LTD. COMMON STOCKHOLDERS | -3 | -7 | -28 | -9 | -26 | -8 | 21 | 3 | 12 | 28 | 86 | 19 | 13 |
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| Income from continuing operations | - | - | - | - | - | - | - | - | - | 0.91 | 2.34 | 0.5 | 0.58 |
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| (Loss) income from discontinued operations | - | - | - | - | - | - | - | - | - | 0.15 | 1.01 | 0.25 | -0.11 |
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| Net income attributable to Genie Energy Ltd. common stockholders | -0.17 | -0.36 | - | - | - | - | 0.85 | 0.1 | 0.45 | 1.06 | 3.35 | 0.75 | 0.47 |
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| Income from continuing operations | - | - | - | - | - | - | - | - | - | 0.9 | 2.28 | 0.49 | 0.57 |
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| (Loss) income from discontinued operations | - | - | - | - | - | - | - | - | - | 0.15 | 0.98 | 0.25 | -0.11 |
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| (Loss) earnings per common share, Diluted (in dollors per share) | -0.17 | -0.36 | - | - | - | - | 0.83 | 0.1 | 0.44 | 1.05 | 3.26 | 0.74 | 0.46 |
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| Dividends declared per common share | 0.133 | - | 0.06 | 0.12 | 0.24 | 0.3 | 0.3 | 0.3 | 0.33 | - | 0.3 | 0.3 | 0.3 |
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