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Note 9 - Goodwill and Other Intangible Assets (Tables) | 6 Months Ended
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Mar. 31, 2023
Notes Tables |
Schedule of Intangible Assets and Goodwill [Table Text Block] |
|  | Weighted- |  |  |  |  |  |  |  |  |
|  | Average |  |  |  |  |  |  |  |  |
|  | Remaining Useful |  |  |  |  |  |  |  |  |
|  | Lives (in years) |  |  | March 31, 2023 |  |  | September 30, 2022 |
Goodwill: |  |  |  |  |  |  |  |  |  |  |
Emerging Markets reporting unit |  |  |  |  | $ | 4,336 |  |  | $ | 4,336 |
Adjacent Markets reporting unit |  |  |  |  |  | 736 |  |  |  | 736 |
Total goodwill |  |  |  |  |  | 5,072 |  |  |  | 5,072 |
Accumulated impairment losses |  |  |  |  |  | (4,336 | ) |  |  | (4,336 | )
|  |  |  |  | $ | 736 |  |  | $ | 736 |
Other intangible assets: |  |  |  |  |  |  |  |  |  |  |
Developed technology |  | 13.7 |  |  | $ | 6,475 |  |  | $ | 6,475 |
Customer relationships |  | -- |  |  |  | 3,900 |  |  |  | 3,900 |
Trade names |  | 0.5 |  |  |  | 2,022 |  |  |  | 2,022 |
Non-compete agreements |  | 0.2 |  |  |  | 186 |  |  |  | 186 |
Total other intangible assets |  | 7.1 |  |  |  | 12,583 |  |  |  | 12,583 |
Accumulated amortization |  |  |  |  |  | (7,440 | ) |  |  | (7,010 | )
|  |  |  |  | $ | 5,143 |  |  | $ | 5,573 |
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] |
For fiscal years ending September 30, |  |  |  |
2023 (remainder) |  | $ | 337 |
2024 |  |  | 395 |
2025 |  |  | 381 |
2026 |  |  | 374 |
2027 |  |  | 360 |
Thereafter |  |  | 3,296 |
|  | $ | 5,143 |

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