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Note 11 - Debt (Details Textual) $ in Thousands | Sep. 30, 2020 USD ($)
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Long-term Debt, Current Maturities, Total | $ 300
Long-term Debt, Excluding Current Maturities, Total | 18
Collateral Pledged [Member] | Loan with Ministry of Science and Innovation, Due February 2, 2024 [Member] | Genasys Acquisition [Member] | Loans With Governmental Agencies [Member] |
Long-term Debt, Current Maturities, Total | $ 282
Cash Pledged as Collateral, Percentage of the Original Principal Received | 66.60%

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