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Note 4 - Balance Sheet Components (Tables) | 9 Months Ended
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Sep. 30, 2025
Notes Tables |
Schedule of Inventory, Current [Table Text Block] |
|  | September 30, |  | December 31,
|  | 2025 |  | 2024
Raw materials |  | $ | 77,254 |  |  | $ | 91,851 |
Work in process |  |  | 210,471 |  |  |  | 169,982 |
Finished goods |  |  | 217,955 |  |  |  | 157,778 |
Total |  | $ | 505,680 |  |  | $ | 419,611 |
Schedule of Other Current Assets [Table Text Block] |
|  | September 30, |  | December 31,
|  | 2025 |  | 2024
Prepaid wafer expenses (1) |  | $ | 60,000 |  |  | $ | - |
Other receivables (1) |  |  | - |  |  |  | 60,000 |
Other |  |  | 36,021 |  |  |  | 49,978 |
Total |  | $ | 96,021 |  |  | $ | 109,978 |
Schedule of Other Assets, Noncurrent [Table Text Block] |
|  | September 30, |  | December 31,
|  | 2025 |  | 2024
Deferred compensation plan assets |  | $ | 101,905 |  |  | $ | 92,586 |
Prepaid wafer purchases (1) |  |  | - |  |  |  | 60,000 |
Other |  |  | 59,150 |  |  |  | 41,791 |
Total |  | $ | 161,055 |  |  | $ | 194,377 |
Schedule of Accrued Liabilities [Table Text Block] |
|  | September 30, |  | December 31,
|  | 2025 |  | 2024
Dividends and dividend equivalents |  | $ | 79,935 |  |  | $ | 60,622 |
Income tax payable (1) |  |  | 51,350 |  |  |  | 10,534 |
Stock rotation and sales returns |  |  | 31,854 |  |  |  | 20,799 |
Other |  |  | 38,374 |  |  |  | 36,168 |
Total |  | $ | 201,513 |  |  | $ | 128,123 |
Other Noncurrent Liabilities [Table Text Block] |
|  | September 30, |  | December 31,
|  | 2025 |  | 2024
Deferred compensation plan liabilities |  | $ | 98,926 |  |  | $ | 93,653 |
Operating lease liabilities |  |  | 15,076 |  |  |  | 12,974 |
Dividend equivalents |  |  | 3,378 |  |  |  | 4,943 |
Total |  | $ | 117,380 |  |  | $ | 111,570 |

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