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Note 15 - Commitments, Contingencies and Concentrations of Credit Risk - Summary of Commitments (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
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Commitments | $ 229,828 | $ 214,801
Commitments to Extend Credit [Member] |  |
Commitments | 222,660 | 207,168
Standby Letters of Credit [Member] |  |
Commitments | $ 7,168 | $ 7,633

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- Definition The fair value of financial liabilities, which are not recognized in the financial statements (off-balance sheet) because they fail to meet some other criterion for recognition. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13433-108611 + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | credit
Period Type: | instant

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |