Loans and Allowance for Credit Losses - Amortized cost basis of loans on nonaccrual status loans (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Financing Receivable, Past Due [Line Items]
Nonaccrual with no Allowance for Credit Losses	$ 1,214		$ 991
Nonaccrual	7,345		8,596
90 Days or More Past Due and Accruing			139
Interest income if troubled debt restructurings recognized in the period	651	$ 38
Accrued interest receivable	12,300		12,200
Commercial
Financing Receivable, Past Due [Line Items]
Nonaccrual with no Allowance for Credit Losses	164		174
Nonaccrual	6,288		7,710
90 Days or More Past Due and Accruing			139
Consumer
Financing Receivable, Past Due [Line Items]
Nonaccrual with no Allowance for Credit Losses	1,050		817
Nonaccrual	1,057		886
Commercial and industrial | Commercial
Financing Receivable, Past Due [Line Items]
Nonaccrual with no Allowance for Credit Losses	69		79
Nonaccrual	5,486		6,595
90 Days or More Past Due and Accruing			139
Commercial real estate | Commercial
Financing Receivable, Past Due [Line Items]
Nonaccrual with no Allowance for Credit Losses	95		95
Nonaccrual	802		1,115
Other revolving and installment | Consumer
Financing Receivable, Past Due [Line Items]
Nonaccrual	1
Real estate first mortgage | Residential | Consumer
Financing Receivable, Past Due [Line Items]
Nonaccrual with no Allowance for Credit Losses	621		632
Nonaccrual	627		638
Real estate junior lien | Residential | Consumer
Financing Receivable, Past Due [Line Items]
Nonaccrual with no Allowance for Credit Losses	429		185
Nonaccrual	$ 429		$ 248