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Note 8 - Intangible Assets - Estimated Remaining Amortization Expense (Details) - USD ($)
$ in Thousands
Jun. 30, 2022
Mar. 31, 2022
Dec. 31, 2021
Jun. 30, 2021
Mar. 31, 2021
Dec. 31, 2020
2022 $ 281          
2023 502          
2024 337          
2025 300          
2026 268          
2027 240          
After 284          
Total $ 2,212 $ 2,359 $ 2,505 $ 2,813 $ 2,973 $ 3,133