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Note 18 - Commitments and Contingencies (Details Textual) - USD ($) $ in Thousands | Dec. 27, 2023 | Oct. 05, 2023 | Jun. 23, 2023 | May 03, 2023 | Aug. 01, 2022 | Dec. 31, 2024 | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | --- | --- | --- | --- | --- | --- | ---
Amount Financed by Dealers |  |  |  |  |  | $ 165,432 |  | $ 158,028
Consumer Product Safety Commission [Member] |  |  |  |  |  |  |  |
Settlement Agreement, Civil Fine Payments |  |  |  | $ 15,800 |  |  |  |
Power Home Solar, LLC Against Generac Power Systems, Inc. [Member] | Minimum [Member] |  |  |  |  |  |  |  |
Loss Contingency, Damages Sought, Value |  |  |  |  | $ 25,000 |  |  |
Case Nos. 21-cv-00428-ADA and 20-cv-00078-ADA [Member] |  |  |  |  |  |  |  |
Litigation Settlement, Amount Awarded to Other Party | $ 4,600 |  | $ 5,400 |  |  |  |  |
Loss Contingency Accrual |  |  |  |  |  |  |  | 10,000
Case No. 22-cv-00072-JRG [Member] |  |  |  |  |  |  |  |
Litigation Settlement, Amount Awarded to Other Party |  | $ 11,500 |  |  |  |  |  |
Loss Contingency Accrual |  |  |  |  |  |  |  | $ 12,669
Case No. 22-cv-00072-JRG [Member] | Estimated Prejudgment Interest [Member] |  |  |  |  |  |  |  |
Loss Contingency Accrual |  |  |  |  |  |  | $ 1,826 |

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