Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Cumulative Effect, Period of Adoption, Adjustment [Member] Retained Earnings [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]	Common Stock Outstanding [Member]	Common Stock Including Additional Paid in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Treasury Stock, Common [Member]	Total
Balance (in shares) at Dec. 31, 2021			5,645,687
Balance at Dec. 31, 2021				$ 114,108	$ 97,442	$ 179		$ 211,729
Net income					15,187			15,187
Other comprehensive income (loss)						(61,099)		(61,099)
Issuance of common stock through Employee Stock Purchase Plan (in shares)			4,891
Issuance of common stock through Employee Stock Purchase Plan				252				252
Forfeited restricted dividend reinvestment shares (in shares)			(48)
Forfeited restricted dividend reinvestment shares							$ 0	0
Issuance of common stock from vested restricted share grants through stock compensation plans (in shares)			11,541
Issuance of common stock from vested restricted share grants through stock compensation plans				0				0
Stock-based compensation expense				719				719
Common stock repurchased (in shares)			(10,294)
Common stock repurchased							(388)	(388)
Cash dividends declared					(3,781)			(3,781)
Balance (in shares) at Jun. 30, 2022			5,651,777
Balance at Jun. 30, 2022				115,079	108,848	(60,920)		162,619
Balance (in shares) at Mar. 31, 2022			5,659,068
Balance at Mar. 31, 2022				114,666	103,074	(42,497)		175,243
Net income					7,664			7,664
Other comprehensive income (loss)						(18,423)		(18,423)
Forfeited restricted dividend reinvestment shares (in shares)			(48)
Forfeited restricted dividend reinvestment shares							0	0
Issuance of common stock from vested restricted share grants through stock compensation plans (in shares)			3,051
Issuance of common stock from vested restricted share grants through stock compensation plans				0				0
Stock-based compensation expense				413				413
Common stock repurchased (in shares)			(10,294)
Common stock repurchased				0			(388)	(388)
Cash dividends declared					(1,890)			(1,890)
Balance (in shares) at Jun. 30, 2022			5,651,777
Balance at Jun. 30, 2022				115,079	108,848	(60,920)		162,619
Balance (in shares) at Dec. 31, 2022			5,630,794
Balance (Accounting Standards Update 2016-13 [Member]) at Dec. 31, 2022	$ (1,326)	$ (1,326)
Balance at Dec. 31, 2022				115,611	119,754	(71,152)	(1,263)	162,950
Net income					12,402			12,402
Other comprehensive income (loss)						5,884		5,884
Issuance of common stock through Employee Stock Purchase Plan (in shares)			7,294
Issuance of common stock through Employee Stock Purchase Plan				302				302
Issuance of common stock from vested restricted share grants through stock compensation plans (in shares)			24,283
Issuance of common stock from vested restricted share grants through stock compensation plans				0
Stock-based compensation expense				963				$ 963
Common stock repurchased (in shares)								(32,554)
Cash dividends declared					(4,119)			$ (4,119)
Re-issuance of common stock through Dividend Reinvestment Plan (in shares)			17,576
Re-issuance of common stock through Dividend Reinvestment Plan				135			673	808
Issuance of common stock through exercise of SSARs (in shares)			2,699
Issuance of common stock through exercise of SSARs				0				0
Repurchase of shares to cover withholdings (in shares)			(1,386)
Repurchase of shares to cover withholdings							(68)	(120)
Balance (in shares) at Jun. 30, 2023			5,681,260
Balance at Jun. 30, 2023				116,959	126,711	(65,268)	(658)	177,744
Balance (in shares) at Mar. 31, 2023			5,665,255
Balance at Mar. 31, 2023				116,437	123,416	(62,938)	(1,028)	175,887
Net income					5,362			5,362
Other comprehensive income (loss)						(2,330)		(2,330)
Issuance of common stock from vested restricted share grants through stock compensation plans (in shares)			3,834
Issuance of common stock from vested restricted share grants through stock compensation plans				0
Stock-based compensation expense				518				518
Cash dividends declared					(2,067)			(2,067)
Re-issuance of common stock through Dividend Reinvestment Plan (in shares)			9,472
Re-issuance of common stock through Dividend Reinvestment Plan				56			370	426
Issuance of common stock through exercise of SSARs (in shares)			2,699
Issuance of common stock through exercise of SSARs				0				0
Repurchase of shares to cover withholdings (in shares)			0
Repurchase of shares to cover withholdings								(52)
Balance (in shares) at Jun. 30, 2023			5,681,260
Balance at Jun. 30, 2023				$ 116,959	$ 126,711	$ (65,268)	$ (658)	$ 177,744