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Note 8 - Goodwill and Intangible Assets - Changes in Carrying Amount of Goodwill (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2023 | Sep. 30, 2022
Balance as of September 30, 2021 | $ 10,118 |
Balance as of September 30, 2021 | 10,505 |
Currency translation, goodwill | 164 |
Amortization | (2,108) | $ (2,154)
Balance as of September 30, 2022 | 10,282 | 10,118
Currency translation | 30 |
Balance as of September 30, 2022 | 8,427 | 10,505
Hardware [Member] |  |
Balance as of September 30, 2021 | 0 |
Balance as of September 30, 2021 | 21 |
Currency translation, goodwill | 0 |
Amortization | (4) |
Balance as of September 30, 2022 | 0 | 0
Currency translation | 0 |
Balance as of September 30, 2022 | 17 | 21
Software [Member] |  |
Balance as of September 30, 2021 | 10,118 |
Balance as of September 30, 2021 | 10,484 |
Currency translation, goodwill | 164 |
Amortization | (2,104) |
Balance as of September 30, 2022 | 10,282 | 10,118
Currency translation | 30 |
Balance as of September 30, 2022 | $ 8,410 | $ 10,484

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482686/350-30-45-2 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-2 + Details
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