| Segment Reporting [Table Text Block] |
| | | Year Ended December 31, | |
| Revenue by Segment | | 2025 | | | 2024 | |
| | | (in thousands) | |
| Europe – Discontinued Operations | | | - | | | | 9,809 | |
| United States | | | - | | | | 311 | |
| Total for the period | | $ | - | | | $ | 10,120 | |
| | | Year Ended December 31, | |
| Net Income/(Loss) by Segment | | 2025 | | | 2024 | |
| | | (in thousands) | |
| Europe | | $ | 13,704 | | | $ | (10,584 | ) |
| Europe – Discontinued Operations | | | - | | | | 45,912 | |
| United States | | | (21,010 | ) | | | (14,250 | ) |
| Total for the period | | $ | (7,306 | ) | | $ | 21,078 | |
| | | Year Ended December 31, | |
| Assets by Segment | | 2025 | | | 2024 | |
| | | (in thousands) | |
| Europe – Continuing Operations | | | | | | | | |
| Other Assets | | | 12 | | | | 3,958 | |
| Total for Europe – Continuing Operations | | $ | 12 | | | $ | 3,958 | |
| | | | | | | | | |
| United States – Continuing Operations | | | | | | | | |
| Intangible assets | | $ | 37,518 | | | $ | - | |
| Goodwill | | $ | 18,964 | | | $ | - | |
| Other Assets | | | 550 | | | | 3,769 | |
| Total for United States – Continuing Operations | | $ | 57,032 | | | $ | 3,769 | |
| | | Year Ended December 31, | |
| Liabilities by Segment | | 2025 | | | 2024 | |
| | | (in thousands) | |
| Europe – Continuing Operations | | | | | | | | |
| Debt | | $ | 1,176 | | | $ | 19,807 | |
| Other Liabilities | | | 1,075 | | | | 1,200 | |
| Total for Europe – Continuing Operations | | $ | 2,252 | | | $ | 21,007 | |
| | | | | | | | | |
| United States – Continuing Operations | | | | | | | | |
| Debt | | $ | 14,885 | | | $ | 9,598 | |
| Other Liabilities | | | 16,885 | | | | 11,007 | |
| Total for United States – Continuing Operations | | $ | 31,771 | | | $ | 20,605 | |
| | | Year Ended December 31, | |
| Revenue by Product Type | | 2025 | | | 2024 | |
| | | (in thousands) | |
| Country Renewable Programs (FiT) | | | | | | | | |
| United States - Continuing operations | | $ | - | | | $ | 311 | |
| Total for the period | | $ | - | | | $ | 311 | |
| | | | | | | | | |
| Country Renewable Programs (FiT) | | | | | | | | |
| Europe – Discontinued Operations | | | - | | | | 334 | |
| Total for the period | | $ | - | | | $ | 334 | |
| | | | | | | | | |
| Green Certificates (FiT) | | | | | | | | |
| Europe – Discontinued Operations | | $ | - | | | $ | 5,803 | |
| Total for the period | | $ | - | | | $ | 5,803 | |
| | | | | | | | | |
| Energy Offtake Agreements (PPA) | | | | | | | | |
| Europe – Discontinued Operations | | | - | | | | 3,638 | |
| Total for the period | | $ | - | | | $ | 3,638 | |
| | | | | | | | | |
| Other Revenue | | | | | | | | |
| Europe – Discontinued Operations | | | - | | | | 34 | |
| Total for the period | | $ | - | | | $ | 34 | |
| | | Year Ended December 31, | |
| Adjusted EBITDA by Segment | | 2025 | | | 2024 | |
| | | (in thousands) | |
| Europe | | $ | (1,225 | ) | | $ | (3,347 | ) |
| Europe – Discontinued Operations | | | - | | | | 5,485 | |
| United States | | | (6,840 | ) | | | (8,454 | ) |
| Total for the period | | $ | (8,065 | ) | | $ | (6,316 | ) |
| | | Year Ended December 31, | |
| Adjusted EBITDA Reconciliation to Net Income/(Loss) | | 2025 | | | 2024 | |
| | | (in thousands) | |
| Europe | | | | | | | | |
| Adjusted EBITDA | | $ | (1,225 | ) | | $ | (3,347 | ) |
| Depreciation, amortization, and accretion | | | - | | | | (21 | ) |
| Interest expense | | | (584 | ) | | | (3,953 | ) |
| Impairment of assets | | | - | | | | (3,263 | ) |
| Gain on sale of assets | | | 15,513 | | | | (3,263 | ) |
| Net Income (Loss) | | $ | 13,704 | | | $ | (10,584 | ) |
| | | | | | | | | |
| Europe – Discontinued Operations | | | | | | | | |
| Adjusted EBITDA | | $ | - | | | $ | 5,485 | |
| Depreciation, amortization, and accretion | | | - | | | | (1,691 | ) |
| Interest expense | | | - | | | | (9,726 | ) |
| Income taxes | | | - | | | | (87 | ) |
| Solis bond waiver fee | | | - | | | | - | |
| Impairment loss recognized on the remeasurement to fair value less costs to sell | | | - | | | | - | |
| Gain on sale of discontinued operations, net assets | | | - | | | | 51,931 | |
| Net Income (Loss) | | $ | - | | | $ | 45,912 | |
| | | | | | | | | |
| United States | | | | | | | | |
| Adjusted EBITDA | | $ | (6,840 | ) | | $ | (8,454 | ) |
| Depreciation, amortization, and accretion | | | (593 | ) | | | (194 | ) |
| Interest expense | | | (3,614 | ) | | | (4,820 | ) |
| Fair value movement of FPA asset | | | - | | | | (483 | ) |
| Fair value movement of convertible note | | | (3,967 | ) | | | 67 | |
| Debt restructuring costs | | | (753 | ) | | | - | |
| Costs associated with legal actions related to unpaid liabilities | | | (1,232 | ) | | | - | |
| Fair value movement of warrant | | | 1,564 | | | | 565 | |
| Loss on issuance of debt | | | (35 | ) | | | - | |
| Loss on extinguishment of debt | | | (3,187 | ) | | | - | |
| Gain on settlement of liabilities | | | 596 | | | | - | |
| Loss on settlement of SAA with Hover | | | (2,025 | ) | | | - | |
| Provision for loss from related party | | | (561 | ) | | | (520 | ) |
| Other expense | | | (363 | ) | | | 179 | |
| Income taxes | | | - | | | | (590 | ) |
| Net Income (Loss) | | $ | (21,010 | ) | | $ | (14,250 | ) |
| Consolidated Net Income (Loss) | | $ | (7,306 | ) | | $ | 21,078 | |
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