Loans Receivable and Allowance for Credit Losses - Schedule of Net Loans (Details) $ in Thousands	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 4,275,178	$ 3,634,792
Less: Allowance for credit losses	(43,436)	(37,588)	$ (34,340)	$ (19,473)
Net loans receivable	4,231,742	3,597,204
Net deferred loan origination fees (costs) included in the above loan table	$ 4,463	$ 5,667
Percentage of Total	1.000	1.000
Farmland
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 32,168	$ 23,768
Less: Allowance for credit losses	$ (159)	$ (151)	(221)	(190)
Percentage of Total	0.008	0.007
Owner-occupied, nonfarm nonresidential properties
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 468,493	$ 434,672
Less: Allowance for credit losses	$ (2,905)	$ (3,339)	(3,700)	(2,390)
Percentage of Total	0.110	0.120
Agricultural production and other loans to farmers
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 1,198	$ 1,379
Less: Allowance for credit losses	$ (6)	$ (9)	(24)	(25)
Percentage of Total	0	0
Commercial and Industrial
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 791,911	$ 708,989
Less: Allowance for credit losses	$ (9,766)	$ (8,837)	(6,233)	(4,105)
Percentage of Total	0.185	0.195
Obligations (other than securities and leases) of states and political subdivisions
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 145,345	$ 140,887
Less: Allowance for credit losses	$ (1,863)	$ (1,649)	(998)	(1,022)
Percentage of Total	0.034	0.039
Other loans
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 24,710	$ 13,979
Less: Allowance for credit losses	$ (456)	$ (149)	(68)	(41)
Percentage of Total	0.006	0.004
Other construction loans and all land development and other land loans
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 446,685	$ 298,869
Less: Allowance for credit losses	$ (3,253)	$ (2,198)	(1,956)	(2,327)
Percentage of Total	0.105	0.082
Multifamily (5 or more) residential properties
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 257,696	$ 216,143
Less: Allowance for credit losses	$ (2,353)	$ (2,289)	(2,724)	(1,087)
Percentage of Total	0.060	0.059
Non-owner occupied, nonfarm nonresidential properties
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 795,315	$ 663,062
Less: Allowance for credit losses	$ (7,653)	$ (6,481)	(8,658)	(3,980)
Percentage of Total	0.186	0.182
1-4 Family Construction
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 51,171	$ 37,822
Less: Allowance for credit losses	$ (327)	$ (158)	(82)	(56)
Percentage of Total	0.012	0.010
Home equity lines of credit
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 124,892	$ 104,517
Less: Allowance for credit losses	$ (1,173)	$ (1,169)	(985)	(180)
Percentage of Total	0.029	0.029
Residential Mortgages secured by first liens
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 942,531	$ 826,729
Less: Allowance for credit losses	$ (8,484)	$ (6,943)	(4,539)	(1,220)
Percentage of Total	0.220	0.227
Residential Mortgages secured by junior liens
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 74,638	$ 56,689
Less: Allowance for credit losses	$ (1,035)	$ (546)	(241)	(114)
Percentage of Total	0.017	0.016
Other revolving credit plans
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 36,372	$ 26,536
Less: Allowance for credit losses	$ (722)	$ (528)	(507)	(296)
Percentage of Total	0.009	0.007
Automobile
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 21,806	$ 20,862
Less: Allowance for credit losses	$ (271)	$ (263)	(132)	(156)
Percentage of Total	0.005	0.006
Other consumer
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 49,144	$ 49,676
Less: Allowance for credit losses	$ (2,665)	$ (2,546)	(2,962)	(1,960)
Percentage of Total	0.011	0.014
Credit cards
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 10,825	$ 9,935
Less: Allowance for credit losses	$ (67)	$ (92)	(66)	(84)
Percentage of Total	0.003	0.003
Overdrafts
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 278	$ 278
Less: Allowance for credit losses	$ (278)	$ (241)	$ (244)	$ (240)
Percentage of Total	0	0