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Note 6 - Goodwill and Intangible Assets - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands | Mar. 31, 2025 | Sep. 30, 2024
--- | --- | ---
Intangibles assets, net | $ 111,202 | $ 125,042
Patents [Member] |  |
Intangibles assets, cost | 1,220 | 1,227
Intangibles assets, accumulated amortization | 1,220 | 1,227
Intangibles assets, net | 0 | 0
Developed Technology Rights [Member] |  |
Intangibles assets, cost | 108,265 | 109,949
Intangibles assets, accumulated amortization | 58,448 | 55,191
Intangibles assets, net | 49,817 | 54,758
Trademarks and Trade Names [Member] |  |
Intangibles assets, cost | 715 | 726
Intangibles assets, accumulated amortization | 240 | 195
Intangibles assets, net | 475 | 531
Noncompete Agreements [Member] |  |
Intangibles assets, cost | 245,330 | 248,036
Intangibles assets, accumulated amortization | 184,420 | 178,283
Intangibles assets, net | 60,910 | 69,753
Other Intangible Assets [Member] |  |
Intangibles assets, cost | 355,530 | 359,938
Intangibles assets, accumulated amortization | 244,328 | 234,896
Intangibles assets, net | $ 111,202 | $ 125,042

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