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Note 7 - Goodwill and Intangible Assets - Estimated Aggregate Future Amortization Expense for Core Deposit Intangible Assets (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Remaining 2022 $ 309  
2023 296  
2024 281  
2025 264  
2026 253  
Total 1,403 $ 1,724
Core Deposits [Member]    
Thereafter $ 0