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v3.25.3

Geographic and Other Information - Schedule of Operating Segment (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Segment Reporting Information [Line Items] |  |  |  |
Total revenues | $ 45,946 | $ 55,434 | $ 138,290 | $ 145,272
Total cost of sales | 37,405 | 43,928 | 110,675 | 117,621
Total gross profit | 8,541 | 11,506 | 27,615 | 27,651
Power solutions business |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues | 45,946 | 52,994 | 138,290 | 136,970
Total gross profit | 8,541 | 11,665 | 27,615 | 28,616
Power solutions business | Power Analog Solutions [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total gross profit | 6,642 | 9,249 | 21,451 | 22,598
Power solutions business | Power Ic [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total gross profit | 1,899 | 2,416 | 6,164 | 6,018
Fab 3 Foundry Services [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues | 0 | 2,440 | 0 | 8,302
Total cost of sales | 0 | 2,599 | 0 | 9,267
Total gross profit | 0 | (159) | 0 | (965)
Operating Segments [Member] | Power solutions business |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues | 45,946 | 52,994 | 138,290 | 136,970
Total cost of sales | 37,405 | 41,329 | 110,675 | 108,354
Operating Segments [Member] | Power solutions business | Power Analog Solutions [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues | 41,548 | 47,574 | 123,666 | 123,349
Total cost of sales | 34,906 | 38,325 | 102,215 | 100,751
Operating Segments [Member] | Power solutions business | Power Ic [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues | 4,398 | 5,420 | 14,624 | 13,621
Total cost of sales | $ 2,499 | $ 3,004 | $ 8,460 | $ 7,603

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