Loans and Allowance for Credit Losses - Troubled Debt Restructured Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Financing Receivable, Troubled Debt Restructuring [Line Items]
New Troubled Debt Restructurings, Accrual Status	$ 0
Existing Troubled Debt Restructurings, Accrual Status	3,291
Troubled Debt Restructurings, Accrual Status	3,291
New Troubled Debt Restructurings, Nonaccrual Status	4,184
New Troubled Debt Restructurings, Nonaccrual Status	3,163
Troubled Debt Restructurings, Nonaccrual Status	7,347
New Troubled Debt Restructurings	4,184
Existing Troubled Debt Restructurings	6,454
Troubled Debt Restructurings	10,638	$ 7,900
Commercial & industrial loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
New Troubled Debt Restructurings, Accrual Status	0
New Troubled Debt Restructurings, Nonaccrual Status	3,118
New Troubled Debt Restructurings	3,118
Commercial real estate | Owner occupied properties
Financing Receivable, Troubled Debt Restructuring [Line Items]
New Troubled Debt Restructurings, Accrual Status	0
New Troubled Debt Restructurings, Nonaccrual Status	350
New Troubled Debt Restructurings	350
Residential real estate | 1-4 family residential properties secured by junior liens and revolving secured by 1-4 family first liens
Financing Receivable, Troubled Debt Restructuring [Line Items]
New Troubled Debt Restructurings, Accrual Status	0
New Troubled Debt Restructurings, Nonaccrual Status	139
New Troubled Debt Restructurings	139
Other construction, land development and raw land loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
New Troubled Debt Restructurings, Accrual Status	0
New Troubled Debt Restructurings, Nonaccrual Status	577
New Troubled Debt Restructurings	$ 577