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Note 9 - Goodwill and Intangible Assets - Summary of Intangible Assets (Details) - USD ($) $ in Thousands | Jun. 30, 2021 | Sep. 30, 2020
--- | --- | ---
Intangible assets, gross carrying amount | $ 14,979 | $ 1,829
Accumulated amortization | (1,548) | (886)
Intangible assets, net | 13,431 | 943
Developed Technology Rights [Member] |  |
Intangible assets, gross carrying amount | 12,148 | 655
Customer Relationships [Member] |  |
Intangible assets, gross carrying amount | 1,878 | 627
Trade Names [Member] |  |
Intangible assets, gross carrying amount | 631 | 228
Noncompete Agreements [Member] |  |
Intangible assets, gross carrying amount | 250 | 247
Patents [Member] |  |
Intangible assets, gross carrying amount | $ 72 | $ 72

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