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Securities (Other Investments) (Details) - USD ($) $ in Thousands | Mar. 31, 2021 | Dec. 31, 2020
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Debt Securities, Available-for-sale [Line Items] |  |
Other investments | $ 14,728 | $ 14,794
Federal Reserve Bank Stock [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
Other investments | 8,460 | 8,606
Investment in Federal Home Loan Bank Stock [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
Other investments | 5,918 | 5,838
First National Bankers Bank Stock [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
Other investments | $ 350 | $ 350

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- Definition Amount of investment in equity security without readily determinable fair value. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 321 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=116654751&loc=SL75117539-209714 + Details
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