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Note 9 - Intangible Assets, Net - Future Amortization Expense (Details) - USD ($)
$ in Thousands
Jun. 30, 2022
Dec. 31, 2021
2023 $ 611  
2024 611  
2025 611  
2026 611  
2027 611  
thereafter 97  
Finite-Lived Intangible Assets, Net, Ending Balance $ 3,763 $ 3,836