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Stockholders' Equity - Stock-based Compensation (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Stockholders' Equity |  |  |  |
Compensation expense | $ 50 | $ 160 | $ 670 | $ 750
Operating cost | $ 51 | 163 | 568 | 754
Reduction in other income |  |  | 100 |
Costs and Expenses. |  |  |  |
Stockholders' Equity |  |  |  |
Operating cost |  |  | 570 |
Non Management Directors |  |  |  |
Stockholders' Equity |  |  |  |
Compensation expense |  | 50 | 260 | 120
Employee |  |  |  |
Stockholders' Equity |  |  |  |
Compensation expense |  | $ 110 | $ 410 | $ 630

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