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Note 8 - Business Segments (Details Textual) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2024 USD ($) | Mar. 31, 2023 USD ($) | Dec. 31, 2023 USD ($)
Number of Reportable Segments | 3 |  |
Revenue from Contract with Customer, Including Assessed Tax | $ 224,166 | $ 185,232 |
Goodwill | 151,122 |  | $ 90,544
Electricity Segment [Member] |  |  |
Revenue from Contract with Customer, Including Assessed Tax | 191,253 | 170,310 |
Goodwill | 146,500 | 85,800 |
Electricity Segment [Member] | Accounted for Under ASC 606 [Member] |  |  |
Revenue from Contract with Customer, Including Assessed Tax | 44,800 | 32,700 |
Energy Storage and Management Services [Member] |  |  |
Goodwill | 4,600 | 4,600 |
Energy Storage and Management Services [Member] | Accounted for Under Lease Accounting [Member] |  |  |
Revenue from Contract with Customer, Including Assessed Tax | 700 | 0 |
Product Segment [Member] |  |  |
Revenue from Contract with Customer, Including Assessed Tax | 24,832 | 10,042 |
Goodwill | $ 0 | $ 0 |

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