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Note 9 - Intangible Assets, Net - Future Amortization Expense (Details) - USD ($)
$ in Thousands
Sep. 30, 2020
Dec. 31, 2019
2021 $ 570  
2022 570  
2023 570  
2024 570  
2025 570  
thereafter 1,181  
Finite-Lived Intangible Assets, Net, Ending Balance $ 4,031 $ 4,081