Consolidated Statements of Changes In Stockholders' Equity - USD ($) $ in Thousands		Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Treasury Stock
Beginning balance at Dec. 31, 2022		$ 353,538	$ 21,424	$ 400,270	$ 65,401	$ (49,655)	$ (83,902)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income		14,609			14,609
Other Comprehensive Income		2,042				2,042
Cash Dividends Paid	[1]	(8,934)			(8,934)
Stock Options Exercised, Net		83		50			33
Shares Issued Under the Directors' Stock Plan		114		85			29
Shares Issued Under the Employee Stock Purchase Plan		120		87			33
Shares Issued for Dividend Reinvestment Plans		472		330			142
Stock-Based Compensation Expense		247		247
Purchases of Treasury Stock		(848)					(848)
Ending balance at Jun. 30, 2023		361,443	21,424	401,069	71,076	(47,613)	(84,513)
Beginning balance at Mar. 31, 2023		363,371	21,424	400,944	69,499	(43,983)	(84,513)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income		6,047
Other Comprehensive Income		(3,630)				(3,630)
Cash Dividends Paid	[1]	(4,470)			(4,470)
Stock-Based Compensation Expense		125		125
Ending balance at Jun. 30, 2023		361,443	21,424	401,069	71,076	(47,613)	(84,513)
Beginning balance at Dec. 31, 2023		379,772	22,067	412,551	65,792	(33,416)	(87,222)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income		16,264			16,264
Other Comprehensive Income		1,784				1,784
Cash Dividends Paid	[1]	(9,076)			(9,076)
Stock Options Exercised, Net		166		97			69
Shares Issued Under the Directors' Stock Plan		256		172			84
Shares Issued Under the Employee Stock Purchase Plan		129		82			47
Shares Issued Related to Restricted Share Awards (22,230 Shares)		0		(179)			179
Compensation expense related to Employee Stock purchase Plan		13		13
Stock-Based Compensation Expense		151		151
Tax Benefit from Exercise of Stock Options		30		30
Purchases of Treasury Stock		(6,471)					(6,471)
Ending balance at Jun. 30, 2024		383,018	22,067	412,917	72,980	(31,632)	(93,314)
Beginning balance at Mar. 31, 2024		377,986	22,067	412,823	68,887	(32,714)	(93,077)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income		8,604			8,604
Other Comprehensive Income		1,082				1,082
Cash Dividends Paid		(4,511)			(4,511)
Stock Options Exercised, Net		50		30			20
Shares Issued Under the Directors' Stock Plan		128		83			45
Shares Issued Under the Employee Stock Purchase Plan		78		49			29
Shares Issued Related to Restricted Share Awards (22,230 Shares)		0		(179)			179
Compensation expense related to Employee Stock purchase Plan		8		8
Stock-Based Compensation Expense		73		73
Tax Benefit from Exercise of Stock Options		30		30
Purchases of Treasury Stock		(510)					(510)
Ending balance at Jun. 30, 2024		$ 383,018	$ 22,067	$ 412,917	$ 72,980	$ (31,632)	$ (93,314)

[1] Cash dividends paid per share have been adjusted for the September 26, 2023 3% stock dividend.