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Investment Securities - Summary of Amortized Cost and Estimated Fair Value, AFS (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 338,408	$ 322,741	$ 294,260
Unrealized Gains	444	2,954	5,404
Unrealized Losses	(25,837)	(5,129)	(5,127)
Fair Value (Estimated)	313,015	320,566	294,537
U.S. Government-sponsored agencies
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	26,019	23,045	23,045
Unrealized Gains	0	0	0
Unrealized Losses	(3,361)	(1,146)	(1,560)
Fair Value (Estimated)	22,658	21,899	21,485
Mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	270,624	256,992	227,089
Unrealized Gains	146	1,803	4,109
Unrealized Losses	(18,586)	(3,895)	(3,284)
Fair Value (Estimated)	252,184	254,900	227,914
State and political subdivisions
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	37,407	38,127	36,663
Unrealized Gains	298	1,083	1,178
Unrealized Losses	(3,872)	(88)	(283)
Fair Value (Estimated)	33,833	39,122	37,558
Asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	4,358	4,577	7,463
Unrealized Gains	0	68	117
Unrealized Losses	(18)	0	0
Fair Value (Estimated)	$ 4,340	$ 4,645	$ 7,580

X

- 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

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
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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

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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

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-Publisher FASB
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-Topic 326
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Amount excluding accrued interest, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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