Loans and Allowance for Loan Losses Schedule of Loans by Impairment Method (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Loans, Allowance for Loan Losses [Line Items]
Loans, individually evaluated for impairment	$ 16,188	$ 16,194
Loans, collectively evaluated for impairment	2,294,885	2,270,555
Loans	2,311,073	2,286,749
Commercial [Member]
Loans, Allowance for Loan Losses [Line Items]
Loans, individually evaluated for impairment	0	0
Loans, collectively evaluated for impairment	566,323	603,599
Loans	566,323	603,599
Construction, land and land development [Member]
Loans, Allowance for Loan Losses [Line Items]
Loans, individually evaluated for impairment	0	0
Loans, collectively evaluated for impairment	246,679	236,093
Loans	246,679	236,093
1-4 family residential first mortgages [Member]
Loans, Allowance for Loan Losses [Line Items]
Loans, individually evaluated for impairment	371	377
Loans, collectively evaluated for impairment	70,261	58,535
Loans	70,632	58,912
Home equity [Member]
Loans, Allowance for Loan Losses [Line Items]
Loans, individually evaluated for impairment	0	0
Loans, collectively evaluated for impairment	7,384	9,444
Loans	7,384	9,444
Commercial real estate [Member]
Loans, Allowance for Loan Losses [Line Items]
Loans, individually evaluated for impairment	15,817	15,817
Loans, collectively evaluated for impairment	1,398,971	1,357,190
Loans	1,414,788	1,373,007
Consumer and other [Member]
Loans, Allowance for Loan Losses [Line Items]
Loans, individually evaluated for impairment	0	0
Loans, collectively evaluated for impairment	5,267	5,694
Loans	$ 5,267	$ 5,694

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

The balance of financing receivables that were collectively evaluated for impairment.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (h)
-URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524

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The balance of financing receivables that were individually evaluated for impairment.

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- Definition

Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=121593590&loc=d3e4428-111522

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