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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, 2018 | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | --- | ---
Finite-lived intangible assets, net | $ 5,026 |  |  |
Other intangible assets | 5,026 | $ 6,151 | [1] |
Community Banking [Member] |  |  |  |
Other intangible assets |  | 6,151 |  | $ 7,207
Core Deposits [Member] |  |  |  |
Finite-lived intangible assets, gross | 8,184 |  |  |
Accumulated amortization | (3,158) |  |  |
Finite-lived intangible assets, net | 5,026 |  |  |
Core Deposits [Member] | Community Banking [Member] |  |  |  |
Finite-lived intangible assets, gross |  | 8,184 |  | 11,536
Accumulated amortization |  | (2,161) |  | (4,515)
Finite-lived intangible assets, net |  | 6,023 |  | 7,021
Other Intangible Assets [Member] |  |  |  |
Finite-lived intangible assets, gross | 535 |  |  |
Accumulated amortization | (535) |  |  |
Finite-lived intangible assets, net |  |  |  |
Other Intangible Assets [Member] | Community Banking [Member] |  |  |  |
Finite-lived intangible assets, gross |  | 879 |  | 3,508
Accumulated amortization |  | (751) |  | (3,322)
Finite-lived intangible assets, net |  | $ 128 |  | $ 186
[1] | Derived from audited financial statements

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