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Security Types (Details) - USD ($) $ in Thousands | Mar. 31, 2020 | Dec. 31, 2019
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Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Debt Maturities, within One Year, Fair Value | $ 5,135 | $ 4,993
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value | 30,230 | 29,160
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value | 44,775 | 29,146
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value | 200,295 | 172,603
Available-for-sale Securities, Fair Value, Total | 280,435 | 235,902
Available For Sale Securities, Gross Unrealized Gains | 8,721 | 3,117
Available For Sale Securities, Gross Unrealized Losses | 171 | 368
Available-for-sale Securities, Amortized Cost Basis | 271,885 | 233,153
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 | 5,038 | 4,993
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value | 28,016 | 27,245
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value | 29,406 | 18,470
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value | 5,218 | 0
Available-for-sale Securities, Fair Value, Total | 67,678 | 50,708
Available For Sale Securities, Gross Unrealized Gains | 2,426 | 215
Available For Sale Securities, Gross Unrealized Losses | 111 | 98
Available-for-sale Securities, Amortized Cost Basis | 65,363 | 50,591
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 | 1,047 | 560
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value | 8,872 | 4,510
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value | 135,452 | 118,207
Available-for-sale Securities, Fair Value, Total | 145,371 | 123,277
Available For Sale Securities, Gross Unrealized Gains | 3,863 | 798
Available For Sale Securities, Gross Unrealized Losses | 0 | 261
Available-for-sale Securities, Amortized Cost Basis | 141,508 | 122,740
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 | 97 | 0
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value | 1,167 | 1,355
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value | 6,497 | 6,166
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value | 59,625 | 54,396
Available-for-sale Securities, Fair Value, Total | 67,386 | 61,917
Available For Sale Securities, Gross Unrealized Gains | 2,432 | 2,104
Available For Sale Securities, Gross Unrealized Losses | 60 | 9
Available-for-sale Securities, Amortized Cost Basis | $ 65,014 | $ 59,822

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