| 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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| Net income (loss) | - | - | - | - | - | - | -12 | -9 | -9 | 0 | -15 | -5 | -7 | 11 |
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| Depreciation and amortization | - | - | - | - | - | - | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
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| Stock-based compensation | 7 | 12 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
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| Gain on grant of royalty interest in mineral titles | - | - | - | - | - | - | - | - | - | - | - | - | - | 17 |
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| Gain on sale of plant and equipment | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 |
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| Other current assets | 1 | 2 | -2 | -0 | -0 | 0 | 0 | -0 | 0 | 0 | 0 | -0 | -0 | 0 |
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| Accounts payable, accrued liabilities and other | 2 | 5 | -5 | -0 | -0 | -0 | 1 | -1 | 0 | 0 | 0 | -0 | -0 | 0 |
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| Net cash used in operating activities | -25 | -30 | -25 | -7 | 3 | - | -9 | -9 | -7 | -7 | -11 | -7 | -6 | -6 |
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| Proceeds from grant of royalty interest in mineral titles | - | - | - | - | - | - | - | - | - | - | - | - | 3 | 17 |
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| Net proceeds from sale of plant and equipment | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 |
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| Additions to plant and equipment | - | - | - | - | - | 0 | - | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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| Capitalized mineral property development costs | - | - | - | - | - | - | - | - | - | - | - | - | - | 2 |
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| Net cash provided by investing activities | -4 | 4 | 5 | 12 | -6 | - | 9 | 8 | 7 | 12 | 3 | 3 | 3 | 16 |
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| Proceeds from equity financing, net | - | 1 | - | - | - | 16 | - | - | - | 2 | 13 | 0 | 1 | 1 |
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| Payment of taxes from withheld shares | - | - | - | - | - | - | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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| Net cash provided by financing activities | 181 | 207 | 7 | -6 | - | - | -0 | -0 | 0 | 2 | 13 | -0 | 1 | 1 |
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| Net increase (decrease) in cash and cash equivalents | - | - | - | - | - | - | - | -0 | 0 | 6 | 5 | -5 | -2 | 11 |
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