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Note 5 - Fair Value Measurements (Details Textual) $ in Thousands, $ in Millions | Oct. 02, 2020 USD ($) | Oct. 02, 2020 CAD ($) | Oct. 02, 2020 USD ($) | Oct. 02, 2020 CAD ($) | Mar. 31, 2022 USD ($) | Sep. 30, 2021 USD ($)
--- | --- | --- | --- | --- | --- | ---
Marketable Securities, Total |  |  |  |  | $ 0 | $ 0
Assets Acquisition of Amika Mobile Corporation [Member] |  |  |  |  |  |
Asset Purchase Agreement, Deduction From Liability | $ 799 | $ 1 | $ 799 | $ 1 |  |
Asset Acquisition, Adjustments from Purchase Holdback Liability, Period (Year) |  |  | 3 years | 3 years |  |

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- Definition Amount of investment in marketable security. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.4) -URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878 + Details
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