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Note 5 - Fair Value Measurements (Details Textual) $ in Thousands, $ in Millions | Oct. 02, 2020 CAD ($) | Oct. 02, 2020 USD ($) | Oct. 02, 2020 CAD ($) | Jun. 30, 2023 USD ($) | Sep. 30, 2022 USD ($)
--- | --- | --- | --- | --- | ---
Marketable Securities, Total |  |  |  | $ 0 | $ 0
Assets Acquisition of Amika Mobile Corporation [Member] |  |  |  |  |
Asset Purchase Agreement, Deduction From Liability | $ 1 | $ 755 | $ 1 |  |
Asset Acquisition, Adjustments from Purchase Holdback Liability, Period (Year) |  | 3 years | 3 years |  |

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