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Note 6 - Goodwill and Intangible Assets - Acquired Intangibles (Details) - Core Deposits [Member] - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
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Intangible assets, gross amount | $ 7,120 | $ 7,120
Intangible assets, accumulated amortization | $ 4,311 | $ 3,158

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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 928 -SubTopic 340 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI https://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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