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Income Taxes - Net operating losses (Details) - USD ($) | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | --- | ---
Income Taxes |  |  |
Net operating losses | $ 2,400,000 | $ 1,900,000 | $ 4,300,000
NOLs, annual limitations on use |  | 71,000 |
Federal |  |  |
Income Taxes |  |  |
Net operating losses | 500,000 | 600,000 |
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 | 1,900,000 | 1,300,000 |
NOLs, annual limitations on use |  | $ 13,700,000 |
NOLs, without regard to this permanent write-off | $ 13,700,000 |  |

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- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-3 + Details
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