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Security Types (Details) - USD ($) $ in Thousands | Mar. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Debt Maturities, within One Year, Fair Value | $ 10,496 | $ 5,525
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value | 27,861 | 26,620
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value | 95,622 | 84,274
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value | 225,651 | 218,758
Available-for-sale Securities, Fair Value, Total | 359,630 | 335,177
Available For Sale Securities, Gross Unrealized Gains | 7,493 | 10,389
Available For Sale Securities, Gross Unrealized Losses | 4,200 | 242
Available-for-sale Securities, Amortized Cost Basis | 356,337 | 325,030
US Government and Government Agencies and Authorities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Debt Maturities, within One Year, Fair Value | 10,115 | 5,048
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value | 26,208 | 24,834
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value | 57,435 | 55,367
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value | 11,424 | 12,199
Available-for-sale Securities, Fair Value, Total | 105,182 | 97,448
Available For Sale Securities, Gross Unrealized Gains | 1,734 | 3,156
Available For Sale Securities, Gross Unrealized Losses | 1,782 | 98
Available-for-sale Securities, Amortized Cost Basis | 105,230 | 94,390
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Debt Maturities, within One Year, Fair Value | 0 | 0
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value | 1,021 | 1,154
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value | 27,745 | 20,502
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value | 153,740 | 141,814
Available-for-sale Securities, Fair Value, Total | 182,506 | 163,470
Available For Sale Securities, Gross Unrealized Gains | 2,405 | 3,245
Available For Sale Securities, Gross Unrealized Losses | 1,970 | 133
Available-for-sale Securities, Amortized Cost Basis | 182,071 | 160,358
US States and Political Subdivisions Debt Securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Debt Maturities, within One Year, Fair Value | 381 | 477
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value | 632 | 632
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value | 10,442 | 8,405
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value | 60,487 | 64,745
Available-for-sale Securities, Fair Value, Total | 71,942 | 74,259
Available For Sale Securities, Gross Unrealized Gains | 3,354 | 3,988
Available For Sale Securities, Gross Unrealized Losses | 448 | 11
Available-for-sale Securities, Amortized Cost Basis | $ 69,036 | $ 70,282

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