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Securities, Gains (Loss) on Securities, Securities Pledged, and Securities Sold Under Agreements to Repurchase (Details) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2021 USD ($) Security | Mar. 31, 2020 USD ($) Security | Dec. 31, 2020 USD ($)
Gains (Loss) on Sales of Securities [Abstract} |  |  |
Net securities gain (loss) | $ (168) | $ 249 |
Realized pre-tax gain on sales and calls of AFS securities | 60 | 481 |
Unrealized gain (loss) from fair market value adjustment of equity securities | (228) | (232) |
Equity securities at fair value | 2,243 |  | $ 2,471
Securities pledged as collateral to secure public deposit and for other purposes | 413,500 |  | 354,500
Amortized cost of securities sold under agreements to repurchase | 389,900 |  | $ 386,600
Visa Class B Restricted Stock [Member] |  |  |
Gains (Loss) on Sales of Securities [Abstract} |  |  |
Equity securities at fair value | 2,200 |  |
Decrease in fair market value of equity securities | $ 200 | $ 200 |
Number of equity securities sold (in shares) | Security | 0 | 0 |

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- Definition Amount of realized gain on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27357-111563 + Details
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- Definition Sum of the carrying amounts as of the date of the latest financial statement presented of securities which are owned but transferred to another party to serve as collateral to partially or fully secure a debt obligation, repurchase agreement or other current or potential obligation, and for which the transferee is not permitted to sell or re-pledge them to an unrelated party. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 50 -Paragraph 1A -Subparagraph (b)(1)(i) -URI http://asc.fasb.org/extlink&oid=109249958&loc=SL6224234-111729 + Details
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