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Revenue (Schedule of Accounts Receivable) (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Receivables [Abstract] |  |
Completed contracts | $ 3,428 | $ 4,682
Contracts in progress | 30,447 | 32,546
Retainage | 9,725 | 8,226
Accounts receivable, gross | 43,600 | 45,454
Allowance for credit losses | (564) | (564)
Total accounts receivable—net | $ 43,036 | $ 44,890

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