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Costs and Estimated Earnings on Uncompleted Contracts (Costs and Estimated Earnings on Uncompleted Contracts Accompanying Consolidated Balance Sheets) (Details) - USD ($) $ in Thousands | Jun. 30, 2024 | Dec. 31, 2023
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Costs and Estimated Earnings on Uncompleted Contracts [Abstract] |  |
Costs and estimated earnings in excess of billings on uncompleted contracts | $ 19,810 | $ 16,252
Billings in excess of costs and estimated earnings on uncompleted contracts (included in Other current liabilities) | (3,109) | (5,597)
Costs and estimated earnings on uncompleted contracts | $ 16,701 | $ 10,655

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