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Securities Available-for-Sale (Details) - Unrealized gains on investment securities - USD ($) $ in Thousands | Jun. 30, 2021 | Dec. 31, 2020
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Securities available-for-sale |  |
Securities, Amortized Cost | $ 453,668 | $ 477,326
Securities, Gross Unrealized Gains | 6,922 | 11,015
Securities, Gross Unrealized Losses | (1,657) | (386)
Securities available-for-sale | 458,933 | 487,955
Securities, Allowance for Investment Credit Losses |  |
Federal agency obligations [Member] |  |
Securities available-for-sale |  |
Securities, Amortized Cost | 34,649 | 37,015
Securities, Gross Unrealized Gains | 1,197 | 1,508
Securities, Gross Unrealized Losses | (73) | (65)
Securities available-for-sale | 35,773 | 38,458
Securities, Allowance for Investment Credit Losses |  |
Residential mortgage pass-through securities [Member] |  |
Securities available-for-sale |  |
Securities, Amortized Cost | 261,761 | 266,114
Securities, Gross Unrealized Gains | 2,655 | 4,811
Securities, Gross Unrealized Losses | (1,258) | (41)
Securities available-for-sale | 263,158 | 270,884
Securities, Allowance for Investment Credit Losses |  |
Commercial mortgage pass-through securities [Member] |  |
Securities available-for-sale |  |
Securities, Amortized Cost | 8,886 | 6,906
Securities, Gross Unrealized Gains | 202 | 203
Securities, Gross Unrealized Losses | (293) | (187)
Securities available-for-sale | 8,795 | 6,922
Securities, Allowance for Investment Credit Losses |  |
Obligations of U.S. states and political subdivisions [Member] |  |
Securities available-for-sale |  |
Securities, Amortized Cost | 133,722 | 138,539
Securities, Gross Unrealized Gains | 2,695 | 4,269
Securities, Gross Unrealized Losses | (29) |
Securities available-for-sale | 136,388 | 142,808
Securities, Allowance for Investment Credit Losses |  |
Corporate bonds and notes [Member] |  |
Securities available-for-sale |  |
Securities, Amortized Cost | 11,459 | 24,925
Securities, Gross Unrealized Gains | 162 | 222
Securities, Gross Unrealized Losses |  | (52)
Securities available-for-sale | 11,621 | 25,095
Securities, Allowance for Investment Credit Losses |  |
Asset-backed securities [Member] |  |
Securities available-for-sale |  |
Securities, Amortized Cost | 2,874 | 3,521
Securities, Gross Unrealized Gains | 10 |
Securities, Gross Unrealized Losses | (4) | (41)
Securities available-for-sale | 2,880 | 3,480
Securities, Allowance for Investment Credit Losses |  |
Certificates of deposit [Member] |  |
Securities available-for-sale |  |
Securities, Amortized Cost | 150 | 149
Securities, Gross Unrealized Gains | 1 | 2
Securities, Gross Unrealized Losses |  |
Securities available-for-sale | 151 | 151
Securities, Allowance for Investment Credit Losses |  |
Other securities [Member] |  |
Securities available-for-sale |  |
Securities, Amortized Cost | 167 | 157
Securities, Gross Unrealized Gains |  |
Securities, Gross Unrealized Losses |  |
Securities available-for-sale | 167 | $ 157
Securities, Allowance for Investment Credit Losses |  |

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- Definition Securities, Allowance for Investment Credit Losses. + References No definition available. + Details
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- Definition Available for sale securities gross unrealized gain accumulated in investments. + References No definition available. + Details
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- Definition Available for sale securities gross unrealized loss accumulated in investments. + References No definition available. + Details
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- Definition Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. + References No definition available. + Details
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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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