Loans and Allowance for Credit Losses - Schedule of Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025
Allowance for Credit Losses on Loans
Balance at beginning of period	$ 21,111	$ 22,044	$ 22,044
Charge-offs	(93)	(142)	(1,588)
Recoveries	35	160
Provision for (release of) credit losses	(120)	(282)
Balance at end of period	20,933	21,780	21,111
Unfunded Loan Commitment
Allowance for Credit Losses on Loans
Balance at beginning of period	1,000
Balance at end of period	1,200		1,000
Commercial, Financial, & Agricultural
Allowance for Credit Losses on Loans
Balance at beginning of period	3,655	1,560	1,560
Charge-offs	(10)	(13)	(1,038)
Recoveries	4	67
Provision for (release of) credit losses	680	(167)
Balance at end of period	4,329	1,447	3,655
Real Estate Construction - Residential
Allowance for Credit Losses on Loans
Balance at beginning of period	975	578	578
Charge-offs	0	0	0
Recoveries	0	0
Provision for (release of) credit losses	72	5
Balance at end of period	1,047	583	975
Real Estate Construction - Commercial
Allowance for Credit Losses on Loans
Balance at beginning of period	1,719	2,221	2,221
Charge-offs	0	0	0
Recoveries	0	0
Provision for (release of) credit losses	181	(554)
Balance at end of period	1,900	1,667	1,719
Real Estate Mortgage - Residential
Allowance for Credit Losses on Loans
Balance at beginning of period	4,823	5,310	5,310
Charge-offs	0	(6)	(14)
Recoveries	5	8
Provision for (release of) credit losses	(439)	(178)
Balance at end of period	4,389	5,134	4,823
Real Estate Mortgage - Commercial
Allowance for Credit Losses on Loans
Balance at beginning of period	9,839	12,305	12,305
Charge-offs	(23)	(33)	(157)
Recoveries	0	58
Provision for (release of) credit losses	(644)	278
Balance at end of period	9,172	12,608	9,839
Installment and Other Consumer
Allowance for Credit Losses on Loans
Balance at beginning of period	100	138	138
Charge-offs	(60)	(90)	(379)
Recoveries	26	27
Provision for (release of) credit losses	30	42
Balance at end of period	96	117	100
Un- allocated
Allowance for Credit Losses on Loans
Balance at beginning of period	0	(68)	(68)
Charge-offs	0	0
Recoveries	0	0
Provision for (release of) credit losses	0	292
Balance at end of period	$ 0	$ 224	$ 0