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Nature of Business and Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Estimated Useful Lives By Class Of Assets | The estimated useful lives by class of assets are:
Class |  | Useful Life (years)
Buildings and improvements |  | 10
Furniture and fixtures |  | 5-10
Vehicles, dozers, and other light operating equipment and systems |  | 3-5
Heavy operating equipment (dredges and barges) |  | 10-30

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