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Note 17 - Segment and Geographic Information (Tables) | 6 Months Ended
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Jun. 30, 2025
Notes Tables |
Schedule of Segment Reporting Information, by Segment [Table Text Block] |
|  | Three months ended June 30, |  |  | Six months ended June 30, |
​ |  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
Revenues |  | $ | 102,952 |  |  | $ | 43,270 |  |  | $ | 202,811 |  |  | $ | 83,943 |
Cost of goods sold |  |  | (71,790 | ) |  |  | (33,708 | ) |  |  | (141,105 | ) |  |  | (66,790 | )
Adjusted research and development |  |  | (20,425 | ) |  |  | (12,517 | ) |  |  | (37,960 | ) |  |  | (23,945 | )
Adjusted sales and marketing |  |  | (7,303 | ) |  |  | (3,526 | ) |  |  | (12,337 | ) |  |  | (7,039 | )
Adjusted general and administrative |  |  | (14,336 | ) |  |  | (9,936 | ) |  |  | (27,224 | ) |  |  | (19,821 | )
Other segment items |  |  | 1,804 |  |  |  | (9,698 | ) |  |  | (2,455 | ) |  |  | (15,633 | )
Total |  | $ | (9,098 | ) |  | $ | (26,115 | ) |  | $ | (18,270 | ) |  | $ | (49,285 | )
Revenue from External Customers by Geographic Areas [Table Text Block] |
|  | Three months ended June 30, |  |  | Six months ended June 30, |
​ |  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
Revenues: |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
United States |  | $ | 803 |  |  | $ | 1,967 |  |  | $ | 1,954 |  |  | $ | 4,677 |
Taiwan |  |  | 39,505 |  |  |  | 28,859 |  |  |  | 67,333 |  |  |  | 53,562 |
China |  |  | 62,644 |  |  |  | 12,444 |  |  |  | 133,524 |  |  |  | 25,704 |
Total |  | $ | 102,952 |  |  | $ | 43,270 |  |  | $ | 202,811 |  |  | $ | 83,943 |
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block] |
​ |  | June 30, |  |  | December 31, |
​ |  | 2025 |  |  | 2024 |
Long-lived assets: |  | ​ |  |  | ​ |
United States |  | $ | 74,052 |  |  | $ | 71,867 |
Taiwan |  |  | 99,988 |  |  |  | 57,907 |
China |  |  | 125,889 |  |  |  | 107,624 |
Total |  | $ | 299,929 |  |  | $ | 237,398 |

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