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Note 7 - Segment Reporting (Details Textual) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2023 USD ($) | Mar. 31, 2023 USD ($) | Sep. 30, 2022 USD ($) | Sep. 30, 2023 USD ($) | Sep. 30, 2022 USD ($) | Dec. 31, 2022
Number of Reportable Segments |  |  |  |  | 2 |  |
Provision for Product Charges | [1] | $ 22,113 |  | $ 55,265 | $ 27,913 | $ 55,265 |
Standard Product Warranty Accrual, Warranty Provision |  |  |  | $ 37,338 |  |  |
Geographic Concentration Risk [Member] | Revenue Benchmark [Member] | UNITED STATES |  |  |  |  |  |  |
Concentration Risk, Percentage |  | 79.00% |  | 82.00% | 77.00% | 82.00% |
Geographic Concentration Risk [Member] | Long-lived Assets [Member] | UNITED STATES |  |  |  |  |  |  |
Concentration Risk, Percentage |  |  |  |  | 75.00% |  | 77.00%
Product [Member] |  |  |  |  |  |  |
Provision for Product Charges |  |  | $ 5,800,000 |  |  |  |
Clean Energy Product [Member] |  |  |  |  |  |  |
Accounts Receivable, Credit Loss Expense (Reversal) |  |  |  | $ 17,926,000 |  |  |
Standard Product Warranty Accrual, Warranty Provision |  |  |  | $ 37,338,000 |  |  |
[1] | The amount recorded in the third quarter 2023 represents a provision for judgments, estimates of pre-judgment interest and costs, and legal expenses related to certain patent lawsuits. The amount recorded in the first quarter 2023 represents a provision of $5.8 million for a matter with the Consumer Product Safety Commission (CPSC) concerning the imposition of civil fines for allegedly failing to timely submit a report under the Consumer Product Safety Act (CPSA) in relation to certain portable generators that were subject to a voluntary recall previously announced on July 29, 2021. The amount recorded in the third quarter of 2022 represents a specific bad debt provision of $17.9 million for a clean energy product customer that filed for bankruptcy as well as a warranty provision of $37.3 million to address certain clean energy product warranty-related matters.

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