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Stock Based Compensation - Employee Retention Bonus (Details) $ in Millions |  | 1 Months Ended | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Nov. 01, 2022 | Oct. 31, 2023 USD ($) | Dec. 31, 2023 USD ($) | Sep. 30, 2023 USD ($) | Sep. 30, 2023 USD ($) | Dec. 31, 2022 USD ($) | Oct. 31, 2022 period
Employee Retention Bonus |  |  |  |  |  |  |
Number of periods in which employees will be eligible to receive cash retention bonus | period |  |  |  |  |  |  | 2
Accrued retention bonus |  |  |  | $ 0.5 | $ 0.5 | $ 0.1 |
Current employees, excluding Chief Executive Officer |  |  |  |  |  |  |
Employee Retention Bonus |  |  |  |  |  |  |
Initial period for which employees will be eligible for retention bonus | 3 months |  |  |  |  |  |
Period following initial period for which employees will be eligible for retention bonus | 9 months |  |  |  |  |  |
Amount of retention bonus paid |  |  |  |  | 0.2 |  |
Amount of retention bonus expense |  |  |  | $ 0.1 | $ 0.5 |  |
Current employees, excluding Chief Executive Officer | Forecast |  |  |  |  |  |  |
Employee Retention Bonus |  |  |  |  |  |  |
Amount of retention bonus paid |  |  | $ 0.5 |  |  |  |
Amount of retention bonus expense |  | $ 0.1 |  |  |  |  |

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- Definition Initial period for which individuals will be eligible for retention bonus if employed through the period under terms of amended retention plan, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Period following initial period for which individuals will be eligible for retention bonus if employed through the period under terms of amended retention plan, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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