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Investment Securities - Summary of Amortized Cost and Estimated Fair Value, AFS (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
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Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | $ 341,113 | $ 322,741
Unrealized Gains | 57 | 2,954
Unrealized Losses | (56,661) | (5,129)
Securities available for sale | 284,509 | 320,566
U.S. Government-sponsored agencies |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 26,025 | 23,045
Unrealized Gains | 0 | 0
Unrealized Losses | (6,878) | (1,146)
Securities available for sale | 19,147 | 21,899
Mortgage-backed securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 271,068 | 256,992
Unrealized Gains | 55 | 1,803
Unrealized Losses | (42,447) | (3,895)
Securities available for sale | 228,676 | 254,900
State and political subdivisions |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 40,472 | 38,127
Unrealized Gains | 2 | 1,083
Unrealized Losses | (7,283) | (88)
Securities available for sale | 33,191 | 39,122
Asset-backed securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 3,548 | 4,577
Unrealized Gains | 0 | 68
Unrealized Losses | (53) | 0
Securities available for sale | $ 3,495 | $ 4,645

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- Definition Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27161-111563 + Details
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- Definition Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27161-111563 + Details
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- Definition Amortized cost excluding accrued interest, after allowance for credit loss, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454 + Details
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