Consolidated Statements of Stockholders' Equity (unaudited) - USD ($) $ in Thousands	Total	Common Stock	Surplus	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock
Balance at beginning of period at Dec. 31, 2023	$ 136,085	$ 7,555	$ 76,818	$ 76,464	$ (13,762)	$ (10,990)
Increase (Decrease) in Stockholders' Equity
Net income	9,085			9,085
Other comprehensive income (loss)	(3,471)				(3,471)
Share-based compensation expense	71		71
Purchase of treasury stock	(1,006)					(1,006)
Restricted share unit vesting and taxes paid related to net share settlement	0		(81)			81
Cash dividends declared, common stock	(2,523)			(2,523)
Balance at end of period at Jun. 30, 2024	138,241	7,555	76,808	83,026	(17,233)	(11,915)
Balance at beginning of period at Mar. 31, 2024	136,620	7,555	76,847	79,725	(16,103)	(11,404)
Increase (Decrease) in Stockholders' Equity
Net income	4,629			4,629
Other comprehensive income (loss)	(1,130)				(1,130)
Share-based compensation expense	42		42
Purchase of treasury stock	(592)					(592)
Restricted share unit vesting and taxes paid related to net share settlement	0		(81)			81
Cash dividends declared, common stock	(1,328)			(1,328)
Balance at end of period at Jun. 30, 2024	138,241	7,555	76,808	83,026	(17,233)	(11,915)
Balance at beginning of period at Dec. 31, 2024	149,547	7,555	76,857	89,542	(12,443)	(11,964)
Increase (Decrease) in Stockholders' Equity
Net income	11,484			11,484
Other comprehensive income (loss)	554				554
Share-based compensation expense	177		177
Purchase of treasury stock	(2,222)					(2,222)
Restricted share unit vesting and taxes paid related to net share settlement	0		(222)			222
Cash dividends declared, common stock	(2,717)			(2,717)
Balance at end of period at Jun. 30, 2025	156,823	7,555	76,812	98,309	(11,889)	(13,964)
Balance at beginning of period at Mar. 31, 2025	153,411	7,555	76,938	93,597	(12,275)	(12,404)
Increase (Decrease) in Stockholders' Equity
Net income	6,101			6,101
Other comprehensive income (loss)	386				386
Share-based compensation expense	96		96
Purchase of treasury stock	(1,782)					(1,782)
Restricted share unit vesting and taxes paid related to net share settlement	0		(222)			222
Cash dividends declared, common stock	(1,389)			(1,389)
Balance at end of period at Jun. 30, 2025	$ 156,823	$ 7,555	$ 76,812	$ 98,309	$ (11,889)	$ (13,964)