| Dec 31, 2011 | 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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| Cash and cash equivalents | 11 | 2 | 12 | 16 | 3 | 12 | 13 | 13 | 16 | 7 | 11 | 10 | 5 | 17 |
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| Accounts receivable | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 5 |
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| Inventories | - | - | - | - | - | - | - | - | - | - | - | - | 2 | 3 |
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| Prepaid expenses and other current assets | 1 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 |
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| Total current assets | 12 | 2 | 13 | 17 | 3 | 16 | 13 | 13 | 16 | 8 | 13 | 12 | 8 | 26 |
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| Property, plant, equipment and water programs, net | 42 | 44 | 44 | 44 | 44 | 44 | 45 | 47 | 50 | 53 | 79 | 84 | 87 | 88 |
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| Long-term deposit/prepaid expenses | - | - | - | - | - | - | - | 2 | 2 | 3 | 0 | 0 | 0 | 0 |
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| Goodwill | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 6 | 6 | 6 |
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| Right-of-use asset | - | - | - | - | - | - | - | - | - | - | 3 | 1 | 0 | 4 |
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| Long-term restricted cash | - | - | - | - | - | - | - | - | - | - | 8 | 2 | 0 | 0 |
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| Other assets | 0 | 0 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 5 | 4 | 5 | 5 | 10 |
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| Total assets | 58 | 51 | 64 | 68 | 55 | 67 | 67 | 69 | 77 | 74 | 112 | 111 | 107 | 134 |
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| Accounts payable | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 2 |
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| Accrued liabilities | 1 | 1 | 2 | 2 | 2 | 4 | 2 | 2 | 5 | 1 | 1 | 2 | 1 | 8 |
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| Current portion of long-term debt | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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| Dividend payable | - | - | - | - | - | - | - | - | - | - | 1 | 1 | 1 | 1 |
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| Contingent consideration liabilities | - | - | - | - | - | - | - | - | - | - | - | 1 | 1 | 1 |
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| Short-term deferred revenue | - | - | - | - | - | - | - | - | - | - | - | - | 0 | 1 |
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| Operating lease liabilities | - | - | - | - | - | - | - | - | - | - | 0 | 0 | 0 | 0 |
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| Total current liabilities | 2 | 2 | 3 | 2 | 2 | 5 | 6 | 4 | 5 | 3 | 3 | 6 | 6 | 14 |
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| Long-term debt, net | 52 | 63 | 96 | 104 | 108 | 102 | 124 | 136 | 138 | 79 | 46 | 49 | 38 | 57 |
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| Long-term lease obligations with related party, net | - | - | - | - | - | - | - | - | - | - | 19 | 21 | 23 | 25 |
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| Long-term operating lease liabilities | - | - | - | - | - | - | - | - | 16 | 17 | 3 | 0 | 0 | 3 |
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| Long-term deferred revenue | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
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| Other long-term liabilities | - | - | - | - | - | - | - | - | 0 | - | 0 | 0 | 0 | 0 |
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| Total liabilities | 56 | 67 | 101 | 108 | 112 | 121 | 145 | 156 | 159 | 100 | 72 | 77 | 67 | 101 |
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| Preferred stock | - | - | - | - | - | - | - | - | - | - | - | 0 | 0 | 0 |
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| Common stock - $0.01 par value; 100,000,000 shares authorized at December 31, 2024, and 85,000,000 authorized at December 31, 2023; shares issued and outstanding: 75,353,889 at December 31, 2024, and 66,710,795 at December 31, 2023 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | - | 1 | 1 | 1 |
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| Additional paid-in capital | 300 | 301 | 304 | 320 | 327 | 355 | 365 | 384 | 419 | 514 | 614 | 637 | 679 | 709 |
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| Accumulated deficit | -298 | -318 | -341 | -360 | -384 | -410 | -444 | -470 | -502 | -539 | -573 | -603 | -640 | -676 |
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| Total stockholders' equity | - | - | - | - | - | - | - | - | - | - | - | 0 | 0 | 0 |
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| Total liabilities and stockholders' equity | 58 | 51 | 64 | 68 | 55 | 67 | 67 | 69 | 77 | 74 | 112 | 111 | 107 | 134 |
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