Segment Information (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
Dec. 31, 2024 |
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| Segment Reporting Information [Line Items] | |||||
| Contract revenues | $ 205,286 | $ 192,167 | $ 393,939 | $ 352,839 | |
| Costs of contract revenues | 179,489 | 173,886 | 345,127 | 319,020 | |
| Gross profit | 25,797 | 18,281 | 48,812 | 33,819 | |
| Selling, general and administrative expenses | 22,774 | 21,135 | 45,319 | 40,134 | |
| Gain on disposal of assets, net | (409) | (86) | (772) | (423) | |
| Operating income (loss) | 3,432 | (2,768) | 4,265 | (5,892) | |
| Total assets | 432,723 | 432,723 | $ 417,317 | ||
| Property and equipment, net | 97,677 | 97,677 | $ 86,098 | ||
| Marine | |||||
| Segment Reporting Information [Line Items] | |||||
| Contract revenues | 135,302 | 130,953 | 262,465 | 237,278 | |
| Costs of contract revenues | 115,156 | 120,878 | 223,794 | 220,998 | |
| Gross profit | 20,146 | 10,075 | 38,671 | 16,280 | |
| Selling, general and administrative expenses | 14,141 | 15,604 | 28,059 | 26,759 | |
| Gain on disposal of assets, net | (225) | (62) | (396) | (146) | |
| Operating income (loss) | 6,230 | (5,467) | 11,008 | (10,333) | |
| Total assets | 345,833 | 322,031 | 345,833 | 322,031 | |
| Property and equipment, net | 93,676 | 80,115 | 93,676 | 80,115 | |
| Depreciation and amortization | 4,373 | 4,922 | 8,904 | 9,852 | |
| Capital expenditures | 6,875 | 3,269 | 15,846 | 4,776 | |
| Concrete | |||||
| Segment Reporting Information [Line Items] | |||||
| Contract revenues | 69,984 | 61,214 | 131,474 | 115,561 | |
| Costs of contract revenues | 64,333 | 53,008 | 121,333 | 98,022 | |
| Gross profit | 5,651 | 8,206 | 10,141 | 17,539 | |
| Selling, general and administrative expenses | 8,633 | 5,531 | 17,260 | 13,375 | |
| Gain on disposal of assets, net | (184) | (24) | (376) | (277) | |
| Operating income (loss) | (2,798) | 2,699 | (6,743) | 4,441 | |
| Total assets | 86,890 | 91,988 | 86,890 | 91,988 | |
| Property and equipment, net | 4,001 | 5,860 | 4,001 | 5,860 | |
| Depreciation and amortization | 858 | 1,049 | 1,730 | 2,138 | |
| Capital expenditures | $ 257 | $ 1,365 | $ 319 | $ 1,711 | |
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- Definition The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets including amortization of right-of-use assets from finance leases to periods that benefit from use of the assets. No definition available.
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- Definition Amount of asset recognized for present right to economic benefit. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The net result for the period of deducting operating expenses from operating revenues. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of expenditure for addition to long-lived assets included in determination of segment assets by chief operating decision maker (CODM) or otherwise regularly provided to CODM. Excludes expenditure for addition to financial instrument, long-term customer relationship of financial institution, mortgage and other servicing rights, deferred policy acquisition cost, and deferred tax assets. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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