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Investments in Securities - Investment Securities (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019
Available-for-sale Securities |  |
Available For Sale Securities Amortized Cost Amount | $ 384,807 | $ 362,460
Available-for-sale Securities, Gross Unrealized Gain | 31,338 | 12,975
Available-for-sale Securities, Gross Unrealized Loss | 1,212 | 1,260
Available for Sale Securities Fair Value | 414,933 | 374,175
Agency mortgage-backed securities |  |
Available For Sale Securities Amortized Cost Amount | 151,106 | 156,591
Available-for-sale Securities, Gross Unrealized Gain | 19,665 | 8,716
Available-for-sale Securities, Gross Unrealized Loss | 831 | 265
Available for Sale Securities Fair Value | 169,940 | 165,042
Agency collateralized mortgage obligations |  |
Available For Sale Securities Amortized Cost Amount | 168,472 | 149,980
Available-for-sale Securities, Gross Unrealized Gain | 8,524 | 2,891
Available-for-sale Securities, Gross Unrealized Loss | 375 | 921
Available for Sale Securities Fair Value | 176,621 | 151,950
States and political subdivisions securities |  |
Available For Sale Securities Amortized Cost Amount | 45,196 | 33,757
Available-for-sale Securities, Gross Unrealized Gain | 2,135 | 1,368
Available-for-sale Securities, Gross Unrealized Loss | 6 |
Available for Sale Securities Fair Value | 47,325 | 35,125
Small Business Administration securities |  |
Available For Sale Securities Amortized Cost Amount | 20,033 | 22,132
Available-for-sale Securities, Gross Unrealized Gain | 1,014 |
Available-for-sale Securities, Gross Unrealized Loss |  | 74
Available for Sale Securities Fair Value | $ 21,047 | $ 22,058

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- Definition This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any. + References No definition available. + Details
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- Definition Amount of unrealized gain before deducting unrealized loss on investments in debt and equity securities classified as available-for-sale securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27161-111563 + Details
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- Definition Amount of unrealized loss before deducting unrealized gain on investments in available-for-sale securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27161-111563 + Details
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