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Note 10 - Goodwill and Other Intangible Assets - Schedule of Goodwill and Other Intangible Assets (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Sep. 30, 2022
--- | --- | ---
Goodwill, gross | $ 5,072 | $ 5,072
Goodwill, accumulated impairment losses | (4,336) | (4,336)
Goodwill | $ 736 | 736
Weighted average remaining useful life (Year) | 6 years 9 months 18 days |
Other intangible assets, gross | $ 12,583 | 12,583
Other intangible assets, accumulated amortization | (7,778) | (7,010)
Finite-Lived Intangible Assets, Net | $ 4,805 | 5,573
Developed Technology Rights [Member] |  |
Weighted average remaining useful life (Year) | 13 years 2 months 12 days |
Other intangible assets, gross | $ 6,475 | 6,475
Customer Relationships [Member] |  |
Other intangible assets, gross | $ 3,900 | 3,900
Trade Names [Member] |  |
Weighted average remaining useful life (Year) | 2 months 12 days |
Other intangible assets, gross | $ 2,022 | 2,022
Noncompete Agreements [Member] |  |
Weighted average remaining useful life (Year) | 2 months 12 days |
Other intangible assets, gross | $ 186 | 186
Emerging Markets [Member] |  |
Goodwill, gross | 4,336 | 4,336
Finite-Lived Intangible Assets, Net | 3,000 |
Adjacent Markets [Member] |  |
Goodwill, gross | 736 | $ 736
Goodwill | 700 |
Finite-Lived Intangible Assets, Net | $ 500 |

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