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Note 6 - Allowance for Credit Losses - Changes in Allowance for Loan Losses (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2021 | Sep. 30, 2021 | Jun. 30, 2021 | Mar. 31, 2021 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Balance |  |  |  | $ 26,182 | $ 26,182 | $ 18,425 |
(Recovery of) provision for credit/loan losses | $ (846) | $ (1,394) | $ (2,230) | (4,001) | (8,471) | 12,668 | $ 3,571
Charge-offs |  |  |  |  | (6,774) | (6,623) |
Recoveries |  |  |  |  | 3,814 | 1,712 |
Net (charge-offs) recoveries |  |  |  |  | (2,960) | 4,911 |
Balance | 27,858 |  |  |  | 27,858 | 26,182 | 18,425
Net charge-offs |  |  |  |  | 2,960 | (4,911) |
Cumulative Effect, Period of Adoption, Adjusted Balance [Member] | Accounting Standards Update 2016-13 [Member] |  |  |  |  |  |  |
Balance |  |  |  | 13,107 | 13,107 |  |
Balance |  |  |  |  |  | 13,107 |
Commercial Portfolio Segment [Member] |  |  |  |  |  |  |
Balance |  |  |  | 14,661 | 14,661 | 10,235 |
(Recovery of) provision for credit/loan losses |  |  |  |  | (6,949) | 6,583 |
Charge-offs |  |  |  |  | (3,431) | (2,769) |
Recoveries |  |  |  |  | 2,134 | 612 |
Net (charge-offs) recoveries |  |  |  |  | (1,297) | 2,157 |
Balance | 14,775 |  |  |  | 14,775 | 14,661 | 10,235
Net charge-offs |  |  |  |  | 1,297 | (2,157) |
Commercial Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member] | Accounting Standards Update 2016-13 [Member] |  |  |  |  |  |  |
Balance |  |  |  | 8,360 | 8,360 |  |
Balance |  |  |  |  |  | 8,360 |
Consumer Real Estate Portfolio Segment [Member] |  |  |  |  |  |  |
Balance |  |  |  | 8,951 | 8,951 | 6,325 |
(Recovery of) provision for credit/loan losses |  |  |  |  | (3,653) | 2,760 |
Charge-offs |  |  |  |  | (318) | (558) |
Recoveries |  |  |  |  | 847 | 424 |
Net (charge-offs) recoveries |  |  |  |  | 529 | 134 |
Balance | 9,972 |  |  |  | 9,972 | 8,951 | 6,325
Net charge-offs |  |  |  |  | (529) | (134) |
Consumer Real Estate Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member] | Accounting Standards Update 2016-13 [Member] |  |  |  |  |  |  |
Balance |  |  |  | 4,145 | 4,145 |  |
Balance |  |  |  |  |  | 4,145 |
Consumer and Other Portfolio Segment [Member] |  |  |  |  |  |  |
Balance |  |  |  | 2,570 | 2,570 | 1,865 |
(Recovery of) provision for credit/loan losses |  |  |  |  | 2,131 | 3,325 |
Charge-offs |  |  |  |  | (3,025) | (3,296) |
Recoveries |  |  |  |  | 833 | 676 |
Net (charge-offs) recoveries |  |  |  |  | (2,192) | 2,620 |
Balance | $ 3,111 |  |  |  | 3,111 | 2,570 | $ 1,865
Net charge-offs |  |  |  |  | 2,192 | (2,620) |
Consumer and Other Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member] | Accounting Standards Update 2016-13 [Member] |  |  |  |  |  |  |
Balance |  |  |  | $ 602 | $ 602 |  |
Balance |  |  |  |  |  | $ 602 |

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