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Note 8 - Commitments and Contingencies | 9 Months Ended
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Sep. 30, 2025
Notes to Financial Statements |
Commitments and Contingencies Disclosure [Text Block] | 8. COMMITMENTS AND CONTINGENCIES Product Warranties and Rework The Company generally provides either a one- or two-year warranty against defects in materials and workmanship and will repair products, provide replacements at no charge to customers or issue a refund. As they are considered assurance-type warranties, the Company does not account for them as separate performance obligations. Historically, the Company’s warranty obligations have not been material. The Company may also incur rework costs associated with product-related claims. The Company accrues for warranty and rework costs upon evaluation of customer specific claims. The changes in warranty reserves were as follows (in thousands) for the periods presented:
|  | Three Months Ended September 30, |  | Nine Months Ended September 30,
|  | 2025 |  | 2024 |  | 2025 |  | 2024
Balance at beginning of period |  | $ | 3,045 |  |  | $ | 14,702 |  |  | $ | 5,401 |  |  | $ | 16,906 |
Warranties issued |  |  | 2,665 |  |  |  | 570 |  |  |  | 3,230 |  |  |  | 2,895 |
Repairs, replacement and refund |  |  | (145 | ) |  |  | (849 | ) |  |  | (1,633 | ) |  |  | (4,979 | )
Changes in liability for pre-existing warranties |  |  | 760 |  |  |  | (79 | ) |  |  | (673 | ) |  |  | (478 | )
Balance at end of period |  | $ | 6,325 |  |  | $ | 14,344 |  |  | $ | 6,325 |  |  | $ | 14,344 |
Purchase Commitments The Company has outstanding purchase obligations with its suppliers and other parties for purchases of goods or services. The purchase obligations primarily consist of wafer and other inventory purchases, assembly and other manufacturing services, construction of manufacturing and R&D facilities, purchases of production and other equipment, and license arrangements. In May 2022, the Company entered into a long-term supply agreement in order to secure manufacturing production capacity for silicon wafers over a four-year period. As of September 30, 2025, the Company had remaining prepayments under this agreement of $60.0 million reported in other current assets on the Condensed Consolidated Balance Sheets. Total estimated future unconditional purchase commitments to all suppliers and other parties, net of the $60.0 million prepayment, as of September 30, 2025 were as follows (in thousands):
2025 (remaining three months) |  | $ | 117,079 |
2026 |  |  | 349,330 |
2027 |  |  | 31,936 |
2028 |  |  | 486 |
2029 |  |  | 486 |
Total |  | $ | 499,317 |
Litigation The Company is a party to actions and proceedings in the ordinary course of business, including challenges to the enforceability or validity of its intellectual property, claims that the Company’s products infringe on the intellectual property rights of others, and employment matters. The Company is also subject to litigation initiated by its stockholders. These proceedings often involve complex questions of fact and law and may require the expenditure of significant funds and the diversion of other resources to prosecute and defend. The Company defends itself vigorously against any such claims. Based on current information, the Company does not believe that a material loss from known matters is probable as of September 30, 2025.

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