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Revenue (Schedule of Accounts Receivable) (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Receivables [Abstract] |  |
Completed contracts | $ 1,530 | $ 4,682
Contracts in progress | 18,172 | 32,546
Retainage | 11,204 | 8,226
Accounts receivable, gross | 30,906 | 45,454
Allowance for credit losses | (564) | (564)
Total accounts receivable—net | $ 30,342 | $ 44,890

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