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Note 6 - Fair Value Measurements (Details Textual) $ in Thousands, $ in Thousands |  |  | 12 Months Ended |
--- | --- | --- | --- | ---
Oct. 02, 2020 USD ($) | Oct. 02, 2020 CAD ($) | Oct. 01, 2020 USD ($) | Oct. 01, 2020 CAD ($) | Sep. 30, 2021 USD ($) | Sep. 30, 2020 USD ($) | Aug. 31, 2020 CAD ($)
Marketable Securities, Total |  |  |  |  | $ 0 |  |
Derivative, Gain (Loss) on Derivative, Net, Total |  |  |  |  | $ (0) | $ (76) |
Foreign Exchange Forward [Member] |  |  |  |  |  |  |
Derivative, Notional Amount |  |  |  |  |  |  | $ 6,955
Payments for Derivative Instrument, Financing Activities |  |  | $ 5,281 | $ 6,955 |  |  |
Derivative, Gain (Loss) on Derivative, Net, Total |  |  | $ (48) |  |  |  |
Foreign Exchange Forward [Member] | Accounts Payable and Accrued Liabilities [Member] |  |  |  |  |  |  |
Derivative Liability, Current |  |  |  |  |  | $ 76 |
Assets Acquisition of Amika Mobile Corporation [Member] |  |  |  |  |  |  |
Asset Purchase Agreement, Deduction From Liability | $ 787 | $ 1,000 |  |  |  |  |
Asset Acquisition, Adjustments from Purchase Holdback Liability, Period (Year) | 3 years | 3 years |  |  |  |  |

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