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Note 14 - Segment and Geographic Distribution of Operations - Segment Reporting Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021 | Dec. 31, 2021
Revenue | $ 163,447 | $ 89,953 | $ 269,176 | $ 173,457 |
Corporate expenses | 161,607 | 110,112 | 274,646 | 219,917 |
Long-lived asset impairment credit | 0 | 0 | 500 | 0 |
Affiliate credit loss impairment credit | 0 | 1,000 | 0 | 1,000 |
Loss on asset dispositions, net | (1,297) | (932) | (1,090) | (2,880) |
Operating income (loss) | 1,840 | (20,159) | (5,470) | (46,460) |
Depreciation and amortization | 31,766 | 28,549 | 58,423 | 58,276 |
Property Plant And Equipment Additions | 4,151 | 665 | 5,380 | 1,861 |
Total Assets | 1,282,735 |  | 1,282,735 |  | $ 1,095,780
Vessel [Member] |  |  |  |  |
Revenue | 162,175 | 88,514 | 266,051 | 169,507 |
Product and Service, Other [Member] |  |  |  |  |
Revenue | 1,272 | 1,439 | 3,125 | 3,950 |
Operating Segments [Member] |  |  |  |  |
Revenue | 163,447 | 89,953 | 269,176 | 173,457 |
Gross Profit | 19,046 | (11,157) | 21,532 | (28,005) |
Operating Segments [Member] | Product and Service, Other [Member] |  |  |  |  |
Revenue | 1,272 | 1,439 | 3,125 | 3,950 |
Gross Profit | 790 | 858 | 2,282 | 2,302 |
Operating Segments [Member] | Americas [Member] |  |  |  |  |
Depreciation and amortization | 7,503 | 7,382 | 14,619 | 15,389 |
Property Plant And Equipment Additions | 538 | 0 | 538 | 0 |
Total Assets | 312,606 |  | 312,606 |  | 278,394
Operating Segments [Member] | Americas [Member] | Vessel [Member] |  |  |  |  |
Revenue | 37,520 | 23,481 | 65,964 | 49,705 |
Gross Profit | 5,930 | (4,940) | 5,848 | (6,591) |
Operating Segments [Member] | Asia Pacific [Member] |  |  |  |  |
Depreciation and amortization | 2,080 | 1,199 | 2,929 | 2,436 |
Property Plant And Equipment Additions | 19 | (50) | 19 | (42) |
Total Assets | 141,841 |  | 141,841 |  | 28,564
Operating Segments [Member] | Asia Pacific [Member] | Vessel [Member] |  |  |  |  |
Revenue | 16,362 | 4,870 | 21,259 | 8,442 |
Gross Profit | (899) | 1,722 | 1,274 | 1,667 |
Operating Segments [Member] | Middle East [Member] |  |  |  |  |
Depreciation and amortization | 6,421 | 5,322 | 11,827 | 10,965 |
Property Plant And Equipment Additions | 2,048 | 0 | 2,072 | 0 |
Total Assets | 209,336 |  | 209,336 |  | 154,723
Operating Segments [Member] | Middle East [Member] | Vessel [Member] |  |  |  |  |
Revenue | 28,396 | 20,758 | 48,614 | 41,600 |
Gross Profit | (307) | (1,456) | (2,190) | (3,254) |
Operating Segments [Member] | Europe and Mediterranean [Member] |  |  |  |  |
Depreciation and amortization | 6,958 | 7,225 | 13,720 | 14,709 |
Property Plant And Equipment Additions | 169 | 287 | 445 | 593 |
Total Assets | 285,910 |  | 285,910 |  | 293,760
Operating Segments [Member] | Europe and Mediterranean [Member] | Vessel [Member] |  |  |  |  |
Revenue | 32,475 | 22,467 | 56,394 | 37,216 |
Gross Profit | 4,262 | (1,986) | 1,833 | (10,007) |
Operating Segments [Member] | West Africa [Member] |  |  |  |  |
Depreciation and amortization | 8,002 | 6,580 | 13,743 | 13,150 |
Property Plant And Equipment Additions | 340 | 59 | 690 | 554 |
Total Assets | 293,536 |  | 293,536 |  | 223,988
Operating Segments [Member] | West Africa [Member] | Vessel [Member] |  |  |  |  |
Revenue | 47,422 | 16,938 | 73,820 | 32,544 |
Gross Profit | 9,270 | (5,355) | 12,485 | (12,122) |
Corporate, Non-Segment [Member] |  |  |  |  |
Corporate expenses | (15,909) | (9,070) | (26,412) | (16,575) |
Depreciation and amortization | 802 | 841 | 1,585 | 1,627 |
Property Plant And Equipment Additions | 1,037 | $ 369 | 1,616 | $ 756 |
Total Assets | $ 39,506 |  | $ 39,506 |  | $ 116,351

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