Loans and Allowance for Loan Losses - Summary of Loans by Major Class (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Loans and Allowance for Loan Losses
Loans held for investment	$ 1,491,997	$ 1,302,133
SBA PPP loans, net	600
Commercial, financial, & agricultural
Loans and Allowance for Loan Losses
Loans held for investment	248,913	217,214
SBA PPP loans, net	600
Real estate mortgage - residential
Loans and Allowance for Loan Losses
SBA PPP loans, net		8,400
Real estate mortgage - residential | Construction
Loans and Allowance for Loan Losses
Loans held for investment	25,243	27,920
Real estate mortgage - residential | Mortgage
Loans and Allowance for Loan Losses
Loans held for investment	343,661	279,346
Real estate construction − commercial & Real estate mortgage − commercial | Construction
Loans and Allowance for Loan Losses
Loans held for investment	133,186	91,369
Real estate construction − commercial & Real estate mortgage − commercial | Mortgage
Loans and Allowance for Loan Losses
Loans held for investment	717,192	663,256
Installment and other consumer
Loans and Allowance for Loan Losses
Loans held for investment	$ 23,802	$ 23,028