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Note 6 - Property, Plant and Equipment (Tables) | 12 Months Ended
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Dec. 31, 2024
Notes Tables |
Property, Plant and Equipment [Table Text Block] |
|  | Estimated |  |  |  |  |  |  |  |  |
|  | Useful Life |  |  | December 31, |
|  | (years) |  |  | 2024 |  |  | 2023 |
Liquefaction plants and systems |  | 10 - 15 |  |  | $ | 56,752 |  |  | $ | 48,523 |
Real property and buildings |  | 3 - 25 |  |  |  | 2,082 |  |  |  | 2,066 |
Vehicles and tanker trailers and equipment |  | 2 - 10 |  |  |  | 49,754 |  |  |  | 49,689 |
Computer and office equipment |  | 2 - 7 |  |  |  | 545 |  |  |  | 458 |
Construction in progress |  | — |  |  |  | 8,082 |  |  |  | 9,879 |
Leasehold improvements |  | — |  |  |  | 31 |  |  |  | 31 |
|  |  |  |  |  | 117,246 |  |  |  | 110,646 |
Less: accumulated depreciation |  |  |  |  |  | (65,518 | ) |  |  | (61,167 | )
|  |  |  |  | $ | 51,728 |  |  | $ | 49,479 |

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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -SubTopic 10 -Topic 360 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482099/360-10-50-1 + Details
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Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration