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Loans and Allowance for Credit Losses Schedule of Allowance for Credit Losses by Impairment Method (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Jun. 30, 2025	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Dec. 31, 2023
Loans, Allowance for Loan Losses [Line Items]
Allowance for credit losses, individually evaluated for credit losses	$ 0		$ 0
Allowance for credit losses, collectively evaluated for credit losses	30,515		30,432
Allowance for credit losses	30,515	$ 30,539	30,432	$ 29,419	$ 28,422	$ 28,342
Commercial [Member]
Loans, Allowance for Loan Losses [Line Items]
Allowance for credit losses, individually evaluated for credit losses	0		0
Allowance for credit losses, collectively evaluated for credit losses	5,651		5,489
Allowance for credit losses	5,651	5,644	5,489	5,281	5,106	5,291
Construction, land and land development [Member]
Loans, Allowance for Loan Losses [Line Items]
Allowance for credit losses, individually evaluated for credit losses	0		0
Allowance for credit losses, collectively evaluated for credit losses	3,943		4,354
Allowance for credit losses	3,943	4,098	4,354	4,297	4,228	3,668
1-4 family residential first mortgages [Member]
Loans, Allowance for Loan Losses [Line Items]
Allowance for credit losses, individually evaluated for credit losses	0		0
Allowance for credit losses, collectively evaluated for credit losses	658		650
Allowance for credit losses	658	623	650	646	643	704
Home equity [Member]
Loans, Allowance for Loan Losses [Line Items]
Allowance for credit losses, individually evaluated for credit losses	0		0
Allowance for credit losses, collectively evaluated for credit losses	274		200
Allowance for credit losses	274	241	200	174	148	142
Commercial real estate [Member]
Loans, Allowance for Loan Losses [Line Items]
Allowance for credit losses, individually evaluated for credit losses	0		0
Allowance for credit losses, collectively evaluated for credit losses	19,683		19,544
Allowance for credit losses	19,683	19,653	19,544	18,866	18,143	18,420
Consumer and other [Member]
Loans, Allowance for Loan Losses [Line Items]
Allowance for credit losses, individually evaluated for credit losses	0		0
Allowance for credit losses, collectively evaluated for credit losses	306		195
Allowance for credit losses	$ 306	$ 280	$ 195	$ 155	$ 154	$ 117