Loans and Allowance for Credit Losses - Loans, Collateral Dependent Loans (Details) - Asset Pledged As Collateral - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Financing Receivable, Impaired [Line Items]
Amortized Cost of Collateral Dependent Loans	$ 8,452	$ 8,728
Related Allowance for Credit Losses	883	22
Amortized Cost of Collateral Dependent Loans with no related Allowance	6,533	8,689
Commercial And Industrial [Member]
Financing Receivable, Impaired [Line Items]
Amortized Cost of Collateral Dependent Loans	7,984	7,981
Related Allowance for Credit Losses	883	0
Amortized Cost of Collateral Dependent Loans with no related Allowance	6,065	7,981
Energy [Member]
Financing Receivable, Impaired [Line Items]
Amortized Cost of Collateral Dependent Loans	468	618
Related Allowance for Credit Losses	0	0
Amortized Cost of Collateral Dependent Loans with no related Allowance	468	618
Commercial Real Estate - Owner-Occupied [Member]
Financing Receivable, Impaired [Line Items]
Amortized Cost of Collateral Dependent Loans	0	0
Related Allowance for Credit Losses	0	0
Amortized Cost of Collateral Dependent Loans with no related Allowance	0	0
Commercial Real Estate - Non-Owner-Occupied [Member]
Financing Receivable, Impaired [Line Items]
Amortized Cost of Collateral Dependent Loans	0	92
Related Allowance for Credit Losses	0	0
Amortized Cost of Collateral Dependent Loans with no related Allowance	0	92
Residential Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Amortized Cost of Collateral Dependent Loans	0	0
Related Allowance for Credit Losses	0	0
Amortized Cost of Collateral Dependent Loans with no related Allowance	0	0
Consumer [Member]
Financing Receivable, Impaired [Line Items]
Amortized Cost of Collateral Dependent Loans	0	39
Related Allowance for Credit Losses	0	22
Amortized Cost of Collateral Dependent Loans with no related Allowance	$ 0	$ 0