Loans and Allowance for Credit Losses - Amortized cost basis of loans on nonaccrual status loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Financing Receivable, Past Due [Line Items]
Nonaccrual with no Allowance for Credit Losses	$ 991	$ 1,934
Nonaccrual	8,596	3,794
90 Days or More Past Due and Accruing	139
Interest income if troubled debt restructurings recognized in the period	469	155	$ 183
Commercial
Financing Receivable, Past Due [Line Items]
Nonaccrual with no Allowance for Credit Losses	174	1,214
Nonaccrual	7,710	3,074
90 Days or More Past Due and Accruing	139
Consumer
Financing Receivable, Past Due [Line Items]
Nonaccrual with no Allowance for Credit Losses	817	720
Nonaccrual	886	720
Commercial and industrial | Commercial
Financing Receivable, Past Due [Line Items]
Nonaccrual with no Allowance for Credit Losses	79	638
Nonaccrual	6,595	1,162
90 Days or More Past Due and Accruing	139
Real estate construction | Commercial
Financing Receivable, Past Due [Line Items]
Nonaccrual		440
Commercial real estate | Commercial
Financing Receivable, Past Due [Line Items]
Nonaccrual with no Allowance for Credit Losses	95	576
Nonaccrual	1,115	1,472
Other revolving and installment | Consumer
Financing Receivable, Past Due [Line Items]
Nonaccrual with no Allowance for Credit Losses		1
Nonaccrual		1
Real estate first mortgage | Residential | Consumer
Financing Receivable, Past Due [Line Items]
Nonaccrual with no Allowance for Credit Losses	632	535
Nonaccrual	638	535
Real estate junior lien | Residential | Consumer
Financing Receivable, Past Due [Line Items]
Nonaccrual with no Allowance for Credit Losses	185	184
Nonaccrual	$ 248	$ 184