Consolidated Statements of Changes In Stockholders' Equity - USD ($) $ in Thousands		Total	Restricted Stock Units (RSU)	Restricted Stock Awards	Common Stock	Additional Paid-In Capital	Additional Paid-In Capital Restricted Stock Units (RSU)	Additional Paid-In Capital Restricted Stock Awards	Retained Earnings	Accumulated Other Comprehensive Loss	Treasury Stock	Treasury Stock Restricted Stock Units (RSU)	Treasury Stock Restricted Stock Awards
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		22,352							22,352
Other Comprehensive Income		(2,929)								(2,929)
Stock Dividend		0			643	11,058			(11,701)
Cash Dividends Paid		(13,405)							(13,405)
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		517				517
Purchases of Treasury Stock	[1]	(848)									(848)
Ending balance at Sep. 30, 2023		360,014			22,067	412,397			62,647	(52,584)	(84,513)
Beginning balance at Jun. 30, 2023		361,443			21,424	401,069			71,076	(47,613)	(84,513)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income		7,743
Other Comprehensive Income		(4,971)								(4,971)
Stock Dividend		0			643	11,058			(11,701)
Cash Dividends Paid		(4,471)							(4,471)
Stock-Based Compensation Expense		270				270
Ending balance at Sep. 30, 2023		360,014			22,067	412,397			62,647	(52,584)	(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		25,239							25,239
Other Comprehensive Income		7,448								7,448
Cash Dividends Paid		(13,602)							(13,602)
Stock Options Exercised, Net		166				97					69
Shares Issued Under the Directors' Stock Plan		377				255					122
Shares Issued Under the Employee Stock Purchase Plan		209				137					72
Shares Issued Related to Restricted Share Awards			$ 0	$ 0			$ (23)	$ (179)				$ 23	$ 179
Compensation expense related to Employee Stock purchase Plan		21				21
Stock-Based Compensation Expense		206				206
Purchases of Treasury Stock	[1]	(6,525)									(6,525)
Ending balance at Sep. 30, 2024		393,311			22,067	413,065			77,429	(25,968)	(93,282)
Beginning balance at Jun. 30, 2024		383,018			22,067	412,917			72,980	(31,632)	(93,314)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income		8,975							8,975
Other Comprehensive Income		5,664								5,664
Cash Dividends Paid		(4,526)							(4,526)
Shares Issued Under the Directors' Stock Plan		121				83					38
Shares Issued Under the Employee Stock Purchase Plan		80				55					25
Shares Issued Related to Restricted Share Awards			$ 0				$ (23)					$ 23
Compensation expense related to Employee Stock purchase Plan		8				8
Stock-Based Compensation Expense		25				25
Purchases of Treasury Stock	[1]	(54)									(54)
Ending balance at Sep. 30, 2024		$ 393,311			$ 22,067	$ 413,065			$ 77,429	$ (25,968)	$ (93,282)

[1] Cost of Treasury Stock for the 2024 periods includes accrual of Stock Buyback Tax Under the Inflation Reduction Act of 2022