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Income Taxes - Net operating losses (Details) - USD ($) | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
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Income Taxes |  |  |
Net operating losses | $ 5,700,000 | $ 2,400,000 | $ 1,900,000
NOLs, annual limitations on use | 71,000 |  |
Federal |  |  |
Income Taxes |  |  |
Net operating losses |  | 500,000 |
NOLs, annual limitations on use | 29,700,000 |  |
NOLs, without regard to this permanent write-off | 29,700,000 |  |
State |  |  |
Income Taxes |  |  |
Net operating losses | 3,600,000 | $ 1,900,000 |
NOLs, annual limitations on use | 13,700,000 |  |
NOLs, without regard to this permanent write-off | 13,700,000 |  |
Foreign |  |  |
Income Taxes |  |  |
Net operating losses | $ 2,100,000 |  |

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