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Operating Segments - Summarized Segment Financial 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
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue | $ 37,538 | $ 41,262 | $ 77,811 | $ 84,143 |
Cost of revenue | 33,977 | 37,104 | 67,635 | 73,861 |
Gross profit | 3,561 | 4,158 | 10,176 | 10,282 |
General and administrative expense | 3,286 | 3,354 | 6,521 | 6,838 |
Other (income) expense, net | 1,354 | (479) | 1,454 | (3,547) |
Operating income (loss) | (1,079) | 1,283 | 2,201 | 6,991 |
Depreciation and amortization expense |  |  | 2,450 | 2,433 |
Interest (expense) income, net | 510 | 603 | 1,059 | 1,145 |
Total assets | 134,348 |  | 134,348 |  | $ 133,216
Operating Segments | Services |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue | 21,978 | 22,767 | 41,833 | 48,301 |
Operating Segments | Fabrication |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue | 15,845 | 18,727 | 36,539 | 35,865 |
Operating Segments | Shipyard |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue |  | 36 |  | 445 |
Continuing Operations |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue | 37,538 | 41,262 | 77,811 | 84,143 |
Cost of revenue | 33,977 | 37,104 | 67,635 | 73,861 |
Gross profit | 3,561 | 4,158 | 10,176 | 10,282 |
General and administrative expense | 3,286 | 3,354 | 6,521 | 6,838 |
Other (income) expense, net | 1,354 | (479) | 1,454 | (3,547) |
Operating income (loss) | (1,079) | 1,283 | 2,201 | 6,991 |
Depreciation and amortization expense | 1,194 | 1,240 | 2,450 | 2,433 |
Interest (expense) income, net | 510 | 603 | 1,059 | 1,145 |
Capital expenditures | 309 | 1,013 | 616 | 3,566 |
Total assets | 134,348 | 133,263 | 134,348 | 133,263 |
Continuing Operations | Operating Segments | Services |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue | 21,978 | 22,767 | 41,833 | 48,301 |
Cost of revenue | 19,580 | 19,879 | 37,152 | 41,800 |
Gross profit | 2,398 | 2,888 | 4,681 | 6,501 |
General and administrative expense | 829 | 687 | 1,529 | 1,430 |
Other (income) expense, net |  | 12 |  | 15 |
Operating income (loss) | 1,569 | 2,189 | 3,152 | 5,056 |
Depreciation and amortization expense | 437 | 486 | 919 | 966 |
Capital expenditures | 71 | 373 | 71 | 667 |
Total assets | 25,659 | 26,179 | 25,659 | 26,179 |
Continuing Operations | Operating Segments | Fabrication |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue | 15,845 | 18,727 | 36,539 | 35,865 |
Cost of revenue | 14,682 | 17,488 | 31,044 | 32,434 |
Gross profit | 1,163 | 1,239 | 5,495 | 3,431 |
General and administrative expense | 828 | 545 | 1,395 | 986 |
Other (income) expense, net | (72) | (435) | (102) | (3,405) |
Operating income (loss) | 407 | 1,129 | 4,202 | 5,850 |
Depreciation and amortization expense | 733 | 674 | 1,431 | 1,309 |
Capital expenditures | 238 | 640 | 545 | 2,899 |
Total assets | 41,745 | 39,449 | 41,745 | 39,449 |
Continuing Operations | Operating Segments | Shipyard |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue |  | 36 |  | 445 |
Cost of revenue |  | 5 |  | 95 |
Gross profit |  | 31 |  | 350 |
Other (income) expense, net |  | 22 |  | (1) |
Operating income (loss) |  | 9 |  | 351 |
Total assets |  | 541 |  | 541 |
Continuing Operations | Corporate |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue | (285) | (268) | (561) | (468) |
Cost of revenue | (285) | (268) | (561) | (468) |
General and administrative expense | 1,629 | 2,122 | 3,597 | 4,422 |
Other (income) expense, net | 1,426 | (78) | 1,556 | (156) |
Operating income (loss) | (3,055) | (2,044) | (5,153) | (4,266) |
Depreciation and amortization expense | 24 | 80 | 100 | 158 |
Interest (expense) income, net | 510 | 603 | 1,059 | 1,145 |
Total assets | $ 66,944 | $ 67,094 | $ 66,944 | $ 67,094 |

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