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Income Taxes - Net operating losses (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | --- | ---
Income Taxes |  |  |
Net operating losses | $ 1,900 | $ 4,300 | $ 2,900
NOLs, annual limitations on use | 71 |  |
Federal |  |  |
Income Taxes |  |  |
Net operating losses | 600 | 1,100 |
NOLs, annual limitations on use | 32,300 |  |
NOLs, without regard to this permanent write-off | 32,200 |  |
State |  |  |
Income Taxes |  |  |
Net operating losses | 1,300 | $ 3,200 |
NOLs, annual limitations on use | 13,900 |  |
NOLs, without regard to this permanent write-off | $ 13,800 |  |

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32559-109319 + Details
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