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Note 1 - Summary of Significant Accounting Policies - Estimated Future Intangible Amortization Expense (Details)
$ in Thousands
Dec. 31, 2020
USD ($)
2021 $ 3,819
2022 3,755
2023 2,929
2024 2,265
2025 1,838
Thereafter 12,710
Total $ 27,316