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Note 9 - Goodwill and Other Intangible Assets - Components of Other Intangible Assets, by Reporting Unit (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | --- | ---
Finite-lived intangible assets, net | $ 7,069 |  |
Other intangible assets | 7,069 | $ 8,519 |
Community Banking [Member] |  |  |
Other intangible assets |  | 8,519 | $ 5,026
Core Deposits [Member] |  |  |
Finite-lived intangible assets, gross | 8,519 |  |
Accumulated amortization | (1,450) |  |
Finite-lived intangible assets, net | 7,069 |  |
Core Deposits [Member] | Highlands Bankshares, Inc. [Member] |  |  |
Finite-lived intangible assets, gross | 0 | 4,490 | 0
Core Deposits [Member] | Community Banking [Member] |  |  |
Finite-lived intangible assets, gross |  | 8,184 | 8,184
Accumulated amortization |  | (4,155) | (3,158)
Finite-lived intangible assets, net |  | 8,519 | 5,026
Other Intangible Assets [Member] |  |  |
Finite-lived intangible assets, gross | 0 |  |
Accumulated amortization | 0 |  |
Finite-lived intangible assets, net | $ 0 |  |
Other Intangible Assets [Member] | Community Banking [Member] |  |  |
Finite-lived intangible assets, gross |  | 0 | 535
Accumulated amortization |  | 0 | (535)
Finite-lived intangible assets, net |  | $ 0 | $ 0

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