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Description of Business and Summary of Significant Accounting Estimates and Policies - Stock-based compensation (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022
Description of Business and Summary of Significant Accounting Estimates and Policies |  |
Direct operating costs | $ 294 | $ 214
Selling and administrative expenses | 3,733 | 3,069
Total stock-based compensation | $ 4,027 | $ 3,283

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