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Note 15 - Segment and Geographic Information - Schedule of Revenue by Geographic Area (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Total revenue | $ 143,942 | $ 144,292 | $ 434,870 | $ 422,372
UNITED STATES |  |  |  |
Total revenue | 87,833 | 95,037 | 271,244 | 272,898
CHINA |  |  |  |
Total revenue | 14,321 | 14,510 | 41,947 | 43,054
UNITED KINGDOM |  |  |  |
Total revenue | 9,370 | 8,086 | 25,252 | 19,387
Europe [Member] |  |  |  |
Total revenue | 25,430 | 21,370 | 75,009 | 66,493
Asia Pacific [Member] |  |  |  |
Total revenue | $ 6,988 | $ 5,289 | $ 21,418 | $ 20,540

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