Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Capital Stock [Member]	Surplus [Member]	Undivided Profits [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]	Total
Balance at Dec. 31, 2024	$ 20,097	$ 258,874	$ 446,503	$ (3,861)	$ (45,270)	$ 676,343
Net income	0	0	14,275	0	0	14,275
Other comprehensive income (loss), net of tax	0	0	0	3,729	0	3,729
Stock Based Compensation Expense	0	308	0	0	0	308
Cash dividend declared	0	0	(6,847)	0	0	(6,847)
Balance at Mar. 31, 2025	20,097	259,182	453,931	(132)	(45,270)	687,808
Balance at Dec. 31, 2025	20,119	260,333	479,996	10,024	(83,883)	686,589
Net income	0	0	16,285	0	0	16,285
Other comprehensive income (loss), net of tax	0	0	0	(1,783)	0	(1,783)
Stock Based Compensation Expense	0	475	0	0	0	475
Purchase of treasury stock	0	0	0	0	(23,905)	(23,905)
Cash dividend declared	0	0	(6,741)	0	0	(6,741)
Balance at Mar. 31, 2026	$ 20,119	$ 260,808	$ 489,540	$ 8,241	$ (107,788)	$ 670,920