Securities - Available-for-sale Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 570,299	$ 456,514
Gross Unrealized Gains	6,883	12,576
Gross Unrealized Losses	(4,681)	(504)
Estimated Fair Value	572,501	468,586
U.S. treasury
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	35,400
Gross Unrealized Gains	0
Gross Unrealized Losses	(215)
Estimated Fair Value	35,185
U.S. agency
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	6,019	9,204
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(100)	(208)
Estimated Fair Value	5,919	8,996
Obligations of states and political subdivisions
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	3,979	3,427
Gross Unrealized Gains	0	8
Gross Unrealized Losses	(190)	0
Estimated Fair Value	3,789	3,435
Mortgage backed - residential
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	138,297	116,365
Gross Unrealized Gains	2,018	3,399
Gross Unrealized Losses	(1,638)	(202)
Estimated Fair Value	138,677	119,562
Collateralized mortgage obligations
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	236,282	200,496
Gross Unrealized Gains	1,441	2,743
Gross Unrealized Losses	(1,939)	(43)
Estimated Fair Value	235,784	203,196
Mortgage backed - commercial
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	150,322	127,022
Gross Unrealized Gains	3,424	6,426
Gross Unrealized Losses	(599)	(51)
Estimated Fair Value	$ 153,147	$ 133,397

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).

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 http://asc.fasb.org/extlink&oid=123581744&loc=d3e27161-111563

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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).

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27161-111563

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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

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454

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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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