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Note 3 - Acquisitions (Details Textual) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Payments to Acquire Businesses, Net of Cash Acquired | $ 762 | $ 34,740 | $ 15,974
Wolverine, Ageto, C&I BESS, and Huntington [Member] |  |  |
Payments to Acquire Businesses, Net of Cash Acquired | 45,765 |  |
Acquisition of REFUstor [Member] |  |  |
Payments to Acquire Businesses, Net of Cash Acquired | $ 16,127 |  |

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- Definition The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-13 + Details
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- Details
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- Details
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