Loans and Allowance - Schedule of Modified Loans (Details) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2021 USD ($) loan	Sep. 30, 2020 USD ($) loan	Sep. 30, 2021 USD ($) loan	Sep. 30, 2020 USD ($) loan
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| loan	7	2	7	3
Recorded Balance \| $	$ 759	$ 423	$ 759	$ 691
Commercial and industrial loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| loan	2	1	2	2
Recorded Balance \| $	$ 160	$ 317	$ 160	$ 585
Residential
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| loan	5		5
Recorded Balance \| $	$ 599		$ 599
Commercial real estate, non-owner occupied
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| loan		1		1
Recorded Balance \| $		$ 106		$ 106

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- Definition

Number of financing receivable contracts modified as troubled debt restructuring within previous 12 months, with subsequent payment default.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953682-111524

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- Definition

Amount of financing receivable modified as troubled debt restructuring within previous 12 months, with subsequent payment default.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 34
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953682-111524

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