Loans and Allowance for Loan Losses Schedule of Past Due Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	$ 85	$ 18
Loans, recorded investment, current	2,301,311	2,270,537
Loans, recorded investment, nonaccrual status	14,586	16,194
Loans	2,315,982	2,286,749
Commercial [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	18
Loans, recorded investment, current	510,947	603,581
Loans, recorded investment, nonaccrual status	0	0
Loans	510,947	603,599
Construction, land and land development [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	0
Loans, recorded investment, current	281,754	236,093
Loans, recorded investment, nonaccrual status	0	0
Loans	281,754	236,093
1-4 family residential first mortgages [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	85	0
Loans, recorded investment, current	65,557	58,535
Loans, recorded investment, nonaccrual status	364	377
Loans	66,006	58,912
Home equity [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	0
Loans, recorded investment, current	7,880	9,444
Loans, recorded investment, nonaccrual status	0	0
Loans	7,880	9,444
Commercial real estate [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	0
Loans, recorded investment, current	1,431,290	1,357,190
Loans, recorded investment, nonaccrual status	14,222	15,817
Loans	1,445,512	1,373,007
Consumer and other [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	0
Loans, recorded investment, current	3,883	5,694
Loans, recorded investment, nonaccrual status	0	0
Loans	3,883	5,694
Loans, 30 to 59 days past due [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	18
Loans, 30 to 59 days past due [Member] | Commercial [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	18
Loans, 30 to 59 days past due [Member] | Construction, land and land development [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	0
Loans, 30 to 59 days past due [Member] | 1-4 family residential first mortgages [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	0
Loans, 30 to 59 days past due [Member] | Home equity [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	0
Loans, 30 to 59 days past due [Member] | Commercial real estate [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	0
Loans, 30 to 59 days past due [Member] | Consumer and other [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	0
Loans, 60 to 89 days past due [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	85	0
Loans, 60 to 89 days past due [Member] | Commercial [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	0
Loans, 60 to 89 days past due [Member] | Construction, land and land development [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	0
Loans, 60 to 89 days past due [Member] | 1-4 family residential first mortgages [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	85	0
Loans, 60 to 89 days past due [Member] | Home equity [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	0
Loans, 60 to 89 days past due [Member] | Commercial real estate [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	0
Loans, 60 to 89 days past due [Member] | Consumer and other [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	0
Loans, equal to greater than 90 days past due [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	0
Loans, equal to greater than 90 days past due [Member] | Commercial [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	0
Loans, equal to greater than 90 days past due [Member] | Construction, land and land development [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	0
Loans, equal to greater than 90 days past due [Member] | 1-4 family residential first mortgages [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	0
Loans, equal to greater than 90 days past due [Member] | Home equity [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	0
Loans, equal to greater than 90 days past due [Member] | Commercial real estate [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	0	0
Loans, equal to greater than 90 days past due [Member] | Consumer and other [Member]
Loans, Recorded Investment, Past Due [Line Items]
Loans, recorded investment, past due	$ 0	$ 0