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Investment Securities (Details) - Unrealized gains on investment securities - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
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Investment securities available-for-sale |  |
Investment Securities Available-for-Sale, Amortized Cost | $ 535,182 | $ 477,326
Investment Securities Available-for-Sale, Gross Unrealized Gains | 4,281 | 11,015
Investment Securities Available-for-Sale, Gross Unrealized Losses | (4,956) | (386)
Investment Securities Available-for-Sale, Fair Value | 534,507 | 487,955
Federal Agency Obligations [Member] |  |
Investment securities available-for-sale |  |
Investment Securities Available-for-Sale, Amortized Cost | 50,336 | 37,015
Investment Securities Available-for-Sale, Gross Unrealized Gains | 649 | 1,508
Investment Securities Available-for-Sale, Gross Unrealized Losses | (625) | (65)
Investment Securities Available-for-Sale, Fair Value | 50,360 | 38,458
Residential mortgage pass-through securities [Member] |  |
Investment securities available-for-sale |  |
Investment Securities Available-for-Sale, Amortized Cost | 317,111 | 266,114
Investment Securities Available-for-Sale, Gross Unrealized Gains | 1,868 | 4,811
Investment Securities Available-for-Sale, Gross Unrealized Losses | (2,884) | (41)
Investment Securities Available-for-Sale, Fair Value | 316,095 | 270,884
Commercial mortgage pass-through securities [Member] |  |
Investment securities available-for-sale |  |
Investment Securities Available-for-Sale, Amortized Cost | 10,814 | 6,906
Investment Securities Available-for-Sale, Gross Unrealized Gains | 118 | 203
Investment Securities Available-for-Sale, Gross Unrealized Losses | (463) | (187)
Investment Securities Available-for-Sale, Fair Value | 10,469 | 6,922
Obligations of U.S. states and political subdivisions [Member] |  |
Investment securities available-for-sale |  |
Investment Securities Available-for-Sale, Amortized Cost | 145,045 | 138,539
Investment Securities Available-for-Sale, Gross Unrealized Gains | 1,562 | 4,269
Investment Securities Available-for-Sale, Gross Unrealized Losses | (982) |
Investment Securities Available-for-Sale, Fair Value | 145,625 | 142,808
Corporate Bonds and Notes [Member] |  |
Investment securities available-for-sale |  |
Investment Securities Available-for-Sale, Amortized Cost | 8,968 | 24,925
Investment Securities Available-for-Sale, Gross Unrealized Gains | 81 | 222
Investment Securities Available-for-Sale, Gross Unrealized Losses |  | (52)
Investment Securities Available-for-Sale, Fair Value | 9,049 | 25,095
Asset-backed Securities [Member] |  |
Investment securities available-for-sale |  |
Investment Securities Available-for-Sale, Amortized Cost | 2,563 | 3,521
Investment Securities Available-for-Sale, Gross Unrealized Gains | 3 |
Investment Securities Available-for-Sale, Gross Unrealized Losses | (2) | (41)
Investment Securities Available-for-Sale, Fair Value | 2,564 | 3,480
Certificates of Deposit [Member] |  |
Investment securities available-for-sale |  |
Investment Securities Available-for-Sale, Amortized Cost | 150 | 149
Investment Securities Available-for-Sale, Gross Unrealized Gains |  | 2
Investment Securities Available-for-Sale, Gross Unrealized Losses |  |
Investment Securities Available-for-Sale, Fair Value | 150 | 151
Other Securities [Member] |  |
Investment securities available-for-sale |  |
Investment Securities Available-for-Sale, Amortized Cost | 195 | 157
Investment Securities Available-for-Sale, Gross Unrealized Gains |  |
Investment Securities Available-for-Sale, Gross Unrealized Losses |  |
Investment Securities Available-for-Sale, Fair Value | $ 195 | $ 157

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