CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Unearned Stock Grant Compensation [Member]	Treasury Stock [Member]	Total
Balance, beginning of period at Dec. 31, 2020	$ 55	$ 22,401	$ 57,437	$ 47,790	$ 25,000	$ (284)	$ (7,339)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income				4,281				$ 4,281
Other comprehensive loss, net of tax					(7,312)			(7,312)
Dividends on common stock				(408)
Dividends accrued on preferred stock				(399)
Restricted stock grants, net of forfeitures			0			0	0
Amortization of unearned compensation						211
Net shares acquired related to employee share-based compensation plans							(153)
Issuance of shares under stock plans			4				2
Balance, end of period at Dec. 31, 2021	55	$ 22,401	57,441	51,264	17,688	(73)	(7,490)	$ 141,286
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared on common stock per share (in dollars per share)								$ 0.02
Balance, beginning of period (in shares) at Dec. 31, 2020		20,415,243
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net shares acquired under employee share-based compensation plans (in shares)		(38,147)
Issuance of shares under stock plans (in shares)		1,480
Restricted stock grants, net of forfeitures (in shares)		0
Balance, end of period (in shares) at Dec. 31, 2021		20,378,576						20,378,576
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income				1,525				$ 1,525
Other comprehensive loss, net of tax					(39,837)			(39,837)
Dividends on common stock				(408)
Dividends accrued on preferred stock				(399)
Restricted stock grants, net of forfeitures			(16)			(193)	209
Amortization of unearned compensation						134
Net shares acquired related to employee share-based compensation plans							(108)
Issuance of shares under stock plans			0				0
Balance, end of period at Dec. 31, 2022	$ 55	$ 22,401	$ 57,425	$ 51,982	$ (22,149)	$ (132)	$ (7,389)	$ 102,193
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared on common stock per share (in dollars per share)								$ 0.02
Net shares acquired under employee share-based compensation plans (in shares)		(36,347)
Issuance of shares under stock plans (in shares)		0
Restricted stock grants, net of forfeitures (in shares)		65,000
Balance, end of period (in shares) at Dec. 31, 2022		20,407,229						20,407,229