Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock Outstanding [Member]	Common Stock Including Additional Paid in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Treasury Stock [Member]	Total
Balance (in shares) at Dec. 31, 2020	4,977,750
Balance at Dec. 31, 2020		$ 77,676	$ 80,042	$ 8,952		$ 166,670
Net income			11,363			11,363
Other comprehensive income (loss)				(3,621)		(3,621)
Issuance of common stock through Employee Stock Purchase Plan (in shares)	4,738
Issuance of common stock through Employee Stock Purchase Plan		270				270
Issuance of common stock from vested restricted share grants through stock compensation plans (in shares)	11,225
Issuance of common stock from vested restricted share grants through stock compensation plans		0				0
Issuance of common stock through exercise of SSARs (in shares)	2,000
Issuance of common stock through exercise of SSARs						0
Stock-based compensation expense		527				527
Cash dividends declared			(3,024)			(3,024)
Balance (in shares) at Jun. 30, 2021	4,995,713
Balance at Jun. 30, 2021		78,473	88,381	5,331		172,185
Balance (in shares) at Mar. 31, 2021	4,995,547
Balance at Mar. 31, 2021		78,222	84,197	1,163		163,582
Net income			5,696			5,696
Other comprehensive income (loss)				4,168		4,168
Issuance of common stock from vested restricted share grants through stock compensation plans (in shares)	166
Issuance of common stock from vested restricted share grants through stock compensation plans		0				0
Stock-based compensation expense		251				251
Cash dividends declared			(1,512)			(1,512)
Balance (in shares) at Jun. 30, 2021	4,995,713
Balance at Jun. 30, 2021		78,473	88,381	5,331		172,185
Balance (in shares) at Dec. 31, 2021	5,645,687
Balance at Dec. 31, 2021		114,108	97,442	179	$ 0	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
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
Stock-based compensation expense		719				719
Cash dividends declared			(3,781)			(3,781)
Forfeited restricted dividend reinvestment shares (in shares)	(48)
Forfeited restricted dividend reinvestment shares					0	$ 0
Common stock repurchased (in shares)	(10,294)					(10,294)
Common stock repurchased					(388)	$ (388)
Balance (in shares) at Jun. 30, 2022	5,651,777
Balance at Jun. 30, 2022		115,079	108,848	(60,920)	(388)	162,619
Balance (in shares) at Mar. 31, 2022	5,659,068
Balance at Mar. 31, 2022		114,666	103,074	(42,497)	0	175,243
Net income			7,664			7,664
Other comprehensive income (loss)				(18,423)		(18,423)
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
Cash dividends declared			(1,890)			(1,890)
Forfeited restricted dividend reinvestment shares					0	0
Common stock repurchased (in shares)	(10,294)
Common stock repurchased					(388)	(388)
Forfeited restricted dividend reinvestment shares (in shares)	(48)
Balance (in shares) at Jun. 30, 2022	5,651,777
Balance at Jun. 30, 2022		$ 115,079	$ 108,848	$ (60,920)	$ (388)	$ 162,619