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Note 7 - Intangible Assets, Net - Future Amortization Expense (Details) - USD ($)
$ in Thousands
Mar. 31, 2020
Dec. 31, 2019
2020 $ 1,935  
2021 2,582  
2022 2,581  
2023 1,906  
2024 1,852  
2025 and thereafter 1,915  
Total intangible assets $ 12,771 $ 13,424