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Investment Securities, Amortized Cost and Fair Value (Details) - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Debt Securities, Available-for-Sale: |  |
Amortized Cost | $ 312,103 | $ 310,121
Unrealized Gains | 249 | 2,178
Unrealized Losses | 18,888 | 4,122
Fair Value | 293,464 | 308,177
Debt Securities, Held-to-Maturity: |  |
Amortized Cost | 22,873 | 22,972
Unrealized Gains | 43 | 119
Unrealized Losses | 507 | 4
Fair Value | 22,409 | 23,087
Equity Securities, Amortized Cost Basis | 2,192 | 2,188
Equity securities with a readily determinable fair value, at fair value | 2,424 | 2,546
U.S. Treasury notes [Member] |  |
Debt Securities, Available-for-Sale: |  |
Amortized Cost | 79,477 | 75,443
Unrealized Gains | 2 | 57
Unrealized Losses | 4,746 | 756
Fair Value | 74,733 | 74,744
U.S. Agency notes [Member] |  |
Debt Securities, Available-for-Sale: |  |
Amortized Cost | 89,282 | 89,293
Unrealized Gains | 0 | 45
Unrealized Losses | 6,536 | 2,092
Fair Value | 82,746 | 87,246
U.S. Agency mortgage-backed securities [Member] |  |
Debt Securities, Available-for-Sale: |  |
Amortized Cost | 91,497 | 96,018
Unrealized Gains | 110 | 1,350
Unrealized Losses | 4,807 | 692
Fair Value | 86,800 | 96,676
Debt Securities, Held-to-Maturity: |  |
Amortized Cost | 0 |
Fair Value | 0 |
Non-taxable Municipal securities [Member] |  |
Debt Securities, Available-for-Sale: |  |
Amortized Cost | 8,496 | 8,959
Unrealized Gains | 5 | 125
Unrealized Losses | 228 | 18
Fair Value | 8,273 | 9,066
Debt Securities, Held-to-Maturity: |  |
Amortized Cost | 19,304 | 19,403
Unrealized Gains | 43 | 98
Unrealized Losses | 309 | 0
Fair Value | 19,038 | 19,501
Taxable Municipal securities [Member] |  |
Debt Securities, Available-for-Sale: |  |
Amortized Cost | 37,151 | 35,208
Unrealized Gains | 88 | 531
Unrealized Losses | 2,254 | 446
Fair Value | 34,985 | 35,293
Debt Securities, Held-to-Maturity: |  |
Amortized Cost | 3,569 | 3,569
Unrealized Gains | 0 | 21
Unrealized Losses | 198 | 4
Fair Value | 3,371 | 3,586
Mutual funds [Member] |  |
Debt Securities, Held-to-Maturity: |  |
Equity Securities, Amortized Cost Basis | 1,414 | 1,410
Equity securities with a readily determinable fair value, at fair value | 1,317 | 1,379
Equity securities [Member] |  |
Debt Securities, Held-to-Maturity: |  |
Equity Securities, Amortized Cost Basis | 778 | 778
Equity securities with a readily determinable fair value, at fair value | 1,107 | 1,167
Corporate Debt Securities |  |
Debt Securities, Available-for-Sale: |  |
Amortized Cost | 6,200 | 5,200
Unrealized Gains | 44 | 70
Unrealized Losses | 317 | 118
Fair Value | $ 5,927 | $ 5,152

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