Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Cumulative Effect, Period of Adoption, Adjustment [Member] Common Stock [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Additional Paid-in Capital [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Retained Earnings [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] AOCI Attributable to Parent [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balances (in shares) at Dec. 31, 2021						19,989,875
Balances at Dec. 31, 2021						$ 24,987	$ 80,128	$ 50,990	$ 6,352	$ 162,457
Net income						0	0	4,353	0	4,353
Cash dividends						0	0	(1,499)	0	(1,499)
Restricted stock awards						$ 0	100	0	0	100
Repurchase of common shares (in shares)						(307,514)
Repurchase of common shares						$ (384)	(2,596)	0	0	$ (2,980)
Common shares issued through dividend reinvestment/optional cash purchase plan (in shares)						1,310				1,310
Common shares issued through dividend reinvestment/optional cash purchase plan						$ 1	10	(10)	0	$ 1
Other comprehensive income (loss), net of tax						$ 0	0	0	(24,043)	(24,043)
Balances (in shares) at Mar. 31, 2022						19,683,671
Balances at Mar. 31, 2022						$ 24,604	77,642	53,834	(17,691)	138,389
Balances (in shares) (Accounting Standards Update 2016-13 [Member]) at Dec. 31, 2022
Balances (in shares) at Dec. 31, 2022						19,681,644
Balances (Accounting Standards Update 2016-13 [Member]) at Dec. 31, 2022			$ 1,080		$ 1,080
Balances at Dec. 31, 2022						$ 24,602	77,502	64,873	(48,028)	118,949
Net income						0	0	2,663	0	2,663
Cash dividends						0	0	(1,771)	0	(1,771)
Restricted stock awards						$ 0	121	0	0	$ 121
Repurchase of common shares (in shares)										0
Common shares issued through dividend reinvestment/optional cash purchase plan (in shares)						2,229				2,229
Common shares issued through dividend reinvestment/optional cash purchase plan						$ 2	13	(11)	0	$ 4
Other comprehensive income (loss), net of tax						$ 0	0	0	5,448	5,448
Balances (in shares) at Mar. 31, 2023						19,683,873
Balances at Mar. 31, 2023						$ 24,604	$ 77,636	$ 66,834	$ (42,580)	$ 126,494